639295020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1259}}^1$

素因数の和:1325

約数の個数: 288

約数和(自身を含む): 2465648640

約数和(自身を除く): 1826353620

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 31, 35, 36, 39, 42, 45, 52, 60, 62, 63, 65, 70, 78, 84, 90, 91, 93, 105, 117, 124, 126, 130, 140, 155, 156, 180, 182, 186, 195, 210, 217, 234, 252, 260, 273, 279, 310, 315, 364, 372, 390, 403, 420, 434, 455, 465, 468, 546, 558, 585, 620, 630, 651, 780, 806, 819, 868, 910, 930, 1085, 1092, 1116, 1170, 1209, 1259, 1260, 1302, 1365, 1395, 1612, 1638, 1820, 1860, 1953, 2015, 2170, 2340, 2418, 2518, 2604, 2730, 2790, 2821, 3255, 3276, 3627, 3777, 3906, 4030, 4095, 4340, 4836, 5036, 5460, 5580, 5642, 6045, 6295, 6510, 7254, 7554, 7812, 8060, 8190, 8463, 8813, 9765, 11284, 11331, 12090, 12590, 13020, 14105, 14508, 15108, 16367, 16380, 16926, 17626, 18135, 18885, 19530, 22662, 24180, 25180, 25389, 26439, 28210, 32734, 33852, 35252, 36270, 37770, 39029, 39060, 42315, 44065, 45324, 49101, 50778, 52878, 56420, 56655, 65468, 72540, 75540, 78058, 79317, 81835, 84630, 88130, 98202, 101556, 105756, 113310, 114569, 117087, 126945, 132195, 147303, 156116, 158634, 163670, 169260, 176260, 195145, 196404, 226620, 229138, 234174, 245505, 253890, 264390, 273203, 294606, 317268, 327340, 343707, 351261, 390290, 396585, 458276, 468348, 491010, 507377, 507780, 528780, 546406, 572845, 585435, 589212, 687414, 702522, 736515, 780580, 793170, 819609, 982020, 1014754, 1031121, 1092812, 1145690, 1170870, 1366015, 1374828, 1405044, 1473030, 1522131, 1586340, 1639218, 1718535, 1756305, 2029508, 2062242, 2291380, 2341740, 2458827, 2536885, 2732030, 2946060, 3044262, 3278436, 3437070, 3512610, 3551639, 4098045, 4124484, 4566393, 4917654, 5073770, 5155605, 5464060, 6088524, 6874140, 7025220, 7103278, 7610655, 8196090, 9132786, 9835308, 10147540, 10311210, 10654917, 12294135, 14206556, 15221310, 16392180, 17758195, 18265572, 20622420, 21309834, 22831965, 24588270, 30442620, 31964751, 35516390, 42619668, 45663930, 49176540, 53274585, 63929502, 71032780, 91327860, 106549170, 127859004, 159823755, 213098340, 319647510, 639295020]

約数ペア:

[(1, 639295020), (2, 319647510), (3, 213098340), (4, 159823755), (5, 127859004), (6, 106549170), (7, 91327860), (9, 71032780), (10, 63929502), (12, 53274585), (13, 49176540), (14, 45663930), (15, 42619668), (18, 35516390), (20, 31964751), (21, 30442620), (26, 24588270), (28, 22831965), (30, 21309834), (31, 20622420), (35, 18265572), (36, 17758195), (39, 16392180), (42, 15221310), (45, 14206556), (52, 12294135), (60, 10654917), (62, 10311210), (63, 10147540), (65, 9835308), (70, 9132786), (78, 8196090), (84, 7610655), (90, 7103278), (91, 7025220), (93, 6874140), (105, 6088524), (117, 5464060), (124, 5155605), (126, 5073770), (130, 4917654), (140, 4566393), (155, 4124484), (156, 4098045), (180, 3551639), (182, 3512610), (186, 3437070), (195, 3278436), (210, 3044262), (217, 2946060), (234, 2732030), (252, 2536885), (260, 2458827), (273, 2341740), (279, 2291380), (310, 2062242), (315, 2029508), (364, 1756305), (372, 1718535), (390, 1639218), (403, 1586340), (420, 1522131), (434, 1473030), (455, 1405044), (465, 1374828), (468, 1366015), (546, 1170870), (558, 1145690), (585, 1092812), (620, 1031121), (630, 1014754), (651, 982020), (780, 819609), (806, 793170), (819, 780580), (868, 736515), (910, 702522), (930, 687414), (1085, 589212), (1092, 585435), (1116, 572845), (1170, 546406), (1209, 528780), (1259, 507780), (1260, 507377), (1302, 491010), (1365, 468348), (1395, 458276), (1612, 396585), (1638, 390290), (1820, 351261), (1860, 343707), (1953, 327340), (2015, 317268), (2170, 294606), (2340, 273203), (2418, 264390), (2518, 253890), (2604, 245505), (2730, 234174), (2790, 229138), (2821, 226620), (3255, 196404), (3276, 195145), (3627, 176260), (3777, 169260), (3906, 163670), (4030, 158634), (4095, 156116), (4340, 147303), (4836, 132195), (5036, 126945), (5460, 117087), (5580, 114569), (5642, 113310), (6045, 105756), (6295, 101556), (6510, 98202), (7254, 88130), (7554, 84630), (7812, 81835), (8060, 79317), (8190, 78058), (8463, 75540), (8813, 72540), (9765, 65468), (11284, 56655), (11331, 56420), (12090, 52878), (12590, 50778), (13020, 49101), (14105, 45324), (14508, 44065), (15108, 42315), (16367, 39060), (16380, 39029), (16926, 37770), (17626, 36270), (18135, 35252), (18885, 33852), (19530, 32734), (22662, 28210), (24180, 26439), (25180, 25389)]