20524140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{179}}^1$

素因数の和:221

約数の個数: 216

約数和(自身を含む): 78427440

約数和(自身を除く): 57903300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 49, 52, 60, 63, 65, 70, 78, 84, 90, 91, 98, 105, 117, 126, 130, 140, 147, 156, 179, 180, 182, 195, 196, 210, 234, 245, 252, 260, 273, 294, 315, 358, 364, 390, 420, 441, 455, 468, 490, 537, 546, 585, 588, 630, 637, 716, 735, 780, 819, 882, 895, 910, 980, 1074, 1092, 1170, 1253, 1260, 1274, 1365, 1470, 1611, 1638, 1764, 1790, 1820, 1911, 2148, 2205, 2327, 2340, 2506, 2548, 2685, 2730, 2940, 3185, 3222, 3276, 3580, 3759, 3822, 4095, 4410, 4654, 5012, 5370, 5460, 5733, 6265, 6370, 6444, 6981, 7518, 7644, 8055, 8190, 8771, 8820, 9308, 9555, 10740, 11277, 11466, 11635, 12530, 12740, 13962, 15036, 16110, 16289, 16380, 17542, 18795, 19110, 20943, 22554, 22932, 23270, 25060, 26313, 27924, 28665, 32220, 32578, 34905, 35084, 37590, 38220, 41886, 43855, 45108, 46540, 48867, 52626, 56385, 57330, 65156, 69810, 75180, 78939, 81445, 83772, 87710, 97734, 104715, 105252, 112770, 114023, 114660, 131565, 139620, 146601, 157878, 162890, 175420, 195468, 209430, 225540, 228046, 244335, 263130, 293202, 315756, 325780, 342069, 394695, 418860, 456092, 488670, 526260, 570115, 586404, 684138, 733005, 789390, 977340, 1026207, 1140230, 1368276, 1466010, 1578780, 1710345, 2052414, 2280460, 2932020, 3420690, 4104828, 5131035, 6841380, 10262070, 20524140]

約数ペア:

[(1, 20524140), (2, 10262070), (3, 6841380), (4, 5131035), (5, 4104828), (6, 3420690), (7, 2932020), (9, 2280460), (10, 2052414), (12, 1710345), (13, 1578780), (14, 1466010), (15, 1368276), (18, 1140230), (20, 1026207), (21, 977340), (26, 789390), (28, 733005), (30, 684138), (35, 586404), (36, 570115), (39, 526260), (42, 488670), (45, 456092), (49, 418860), (52, 394695), (60, 342069), (63, 325780), (65, 315756), (70, 293202), (78, 263130), (84, 244335), (90, 228046), (91, 225540), (98, 209430), (105, 195468), (117, 175420), (126, 162890), (130, 157878), (140, 146601), (147, 139620), (156, 131565), (179, 114660), (180, 114023), (182, 112770), (195, 105252), (196, 104715), (210, 97734), (234, 87710), (245, 83772), (252, 81445), (260, 78939), (273, 75180), (294, 69810), (315, 65156), (358, 57330), (364, 56385), (390, 52626), (420, 48867), (441, 46540), (455, 45108), (468, 43855), (490, 41886), (537, 38220), (546, 37590), (585, 35084), (588, 34905), (630, 32578), (637, 32220), (716, 28665), (735, 27924), (780, 26313), (819, 25060), (882, 23270), (895, 22932), (910, 22554), (980, 20943), (1074, 19110), (1092, 18795), (1170, 17542), (1253, 16380), (1260, 16289), (1274, 16110), (1365, 15036), (1470, 13962), (1611, 12740), (1638, 12530), (1764, 11635), (1790, 11466), (1820, 11277), (1911, 10740), (2148, 9555), (2205, 9308), (2327, 8820), (2340, 8771), (2506, 8190), (2548, 8055), (2685, 7644), (2730, 7518), (2940, 6981), (3185, 6444), (3222, 6370), (3276, 6265), (3580, 5733), (3759, 5460), (3822, 5370), (4095, 5012), (4410, 4654)]