278279820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:854

約数の個数: 288

約数和(自身を含む): 1085918400

約数和(自身を除く): 807638580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 49, 52, 54, 60, 63, 65, 70, 78, 84, 90, 91, 98, 105, 108, 117, 126, 130, 135, 140, 147, 156, 180, 182, 189, 195, 196, 210, 234, 245, 252, 260, 270, 273, 294, 315, 351, 364, 378, 390, 420, 441, 455, 468, 490, 540, 546, 585, 588, 630, 637, 702, 735, 756, 780, 809, 819, 882, 910, 945, 980, 1092, 1170, 1260, 1274, 1323, 1365, 1404, 1470, 1618, 1638, 1755, 1764, 1820, 1890, 1911, 2205, 2340, 2427, 2457, 2548, 2646, 2730, 2940, 3185, 3236, 3276, 3510, 3780, 3822, 4045, 4095, 4410, 4854, 4914, 5292, 5460, 5663, 5733, 6370, 6615, 7020, 7281, 7644, 8090, 8190, 8820, 9555, 9708, 9828, 10517, 11326, 11466, 12135, 12285, 12740, 13230, 14562, 16180, 16380, 16989, 17199, 19110, 21034, 21843, 22652, 22932, 24270, 24570, 26460, 28315, 28665, 29124, 31551, 33978, 34398, 36405, 38220, 39641, 42068, 43686, 48540, 49140, 50967, 52585, 56630, 57330, 63102, 67956, 68796, 72810, 73619, 79282, 84945, 85995, 87372, 94653, 101934, 105170, 109215, 113260, 114660, 118923, 126204, 145620, 147238, 152901, 157755, 158564, 169890, 171990, 189306, 198205, 203868, 210340, 218430, 220857, 237846, 254835, 283959, 294476, 305802, 315510, 339780, 343980, 356769, 368095, 378612, 396410, 436860, 441714, 473265, 475692, 509670, 515333, 567918, 594615, 611604, 631020, 662571, 713538, 736190, 764505, 792820, 883428, 946530, 1019340, 1030666, 1070307, 1104285, 1135836, 1189230, 1325142, 1419795, 1427076, 1472380, 1529010, 1545999, 1783845, 1893060, 1987713, 2061332, 2140614, 2208570, 2378460, 2576665, 2650284, 2839590, 3058020, 3091998, 3312855, 3567690, 3975426, 4281228, 4417140, 4637997, 5153330, 5351535, 5679180, 6183996, 6625710, 7135380, 7729995, 7950852, 9275994, 9938565, 10306660, 10703070, 13251420, 13913991, 15459990, 18551988, 19877130, 21406140, 23189985, 27827982, 30919980, 39754260, 46379970, 55655964, 69569955, 92759940, 139139910, 278279820]

約数ペア:

[(1, 278279820), (2, 139139910), (3, 92759940), (4, 69569955), (5, 55655964), (6, 46379970), (7, 39754260), (9, 30919980), (10, 27827982), (12, 23189985), (13, 21406140), (14, 19877130), (15, 18551988), (18, 15459990), (20, 13913991), (21, 13251420), (26, 10703070), (27, 10306660), (28, 9938565), (30, 9275994), (35, 7950852), (36, 7729995), (39, 7135380), (42, 6625710), (45, 6183996), (49, 5679180), (52, 5351535), (54, 5153330), (60, 4637997), (63, 4417140), (65, 4281228), (70, 3975426), (78, 3567690), (84, 3312855), (90, 3091998), (91, 3058020), (98, 2839590), (105, 2650284), (108, 2576665), (117, 2378460), (126, 2208570), (130, 2140614), (135, 2061332), (140, 1987713), (147, 1893060), (156, 1783845), (180, 1545999), (182, 1529010), (189, 1472380), (195, 1427076), (196, 1419795), (210, 1325142), (234, 1189230), (245, 1135836), (252, 1104285), (260, 1070307), (270, 1030666), (273, 1019340), (294, 946530), (315, 883428), (351, 792820), (364, 764505), (378, 736190), (390, 713538), (420, 662571), (441, 631020), (455, 611604), (468, 594615), (490, 567918), (540, 515333), (546, 509670), (585, 475692), (588, 473265), (630, 441714), (637, 436860), (702, 396410), (735, 378612), (756, 368095), (780, 356769), (809, 343980), (819, 339780), (882, 315510), (910, 305802), (945, 294476), (980, 283959), (1092, 254835), (1170, 237846), (1260, 220857), (1274, 218430), (1323, 210340), (1365, 203868), (1404, 198205), (1470, 189306), (1618, 171990), (1638, 169890), (1755, 158564), (1764, 157755), (1820, 152901), (1890, 147238), (1911, 145620), (2205, 126204), (2340, 118923), (2427, 114660), (2457, 113260), (2548, 109215), (2646, 105170), (2730, 101934), (2940, 94653), (3185, 87372), (3236, 85995), (3276, 84945), (3510, 79282), (3780, 73619), (3822, 72810), (4045, 68796), (4095, 67956), (4410, 63102), (4854, 57330), (4914, 56630), (5292, 52585), (5460, 50967), (5663, 49140), (5733, 48540), (6370, 43686), (6615, 42068), (7020, 39641), (7281, 38220), (7644, 36405), (8090, 34398), (8190, 33978), (8820, 31551), (9555, 29124), (9708, 28665), (9828, 28315), (10517, 26460), (11326, 24570), (11466, 24270), (12135, 22932), (12285, 22652), (12740, 21843), (13230, 21034), (14562, 19110), (16180, 17199), (16380, 16989)]