20212990080

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{757}}^1\times {\mathrm{13907}}^1$

素因数の和:14686

約数の個数: 128

約数和(自身を含む): 64518655680

約数和(自身を除く): 44305665600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 757, 960, 1514, 1920, 2271, 3028, 3785, 4542, 6056, 7570, 9084, 11355, 12112, 13907, 15140, 18168, 22710, 24224, 27814, 30280, 36336, 41721, 45420, 48448, 55628, 60560, 69535, 72672, 83442, 90840, 96896, 111256, 121120, 139070, 145344, 166884, 181680, 208605, 222512, 242240, 278140, 290688, 333768, 363360, 417210, 445024, 484480, 556280, 667536, 726720, 834420, 890048, 1112560, 1335072, 1453440, 1668840, 1780096, 2225120, 2670144, 3337680, 4450240, 5340288, 6675360, 8900480, 10527599, 13350720, 21055198, 26701440, 31582797, 42110396, 52637995, 63165594, 84220792, 105275990, 126331188, 157913985, 168441584, 210551980, 252662376, 315827970, 336883168, 421103960, 505324752, 631655940, 673766336, 842207920, 1010649504, 1263311880, 1347532672, 1684415840, 2021299008, 2526623760, 3368831680, 4042598016, 5053247520, 6737663360, 10106495040, 20212990080]

約数ペア:

[(1, 20212990080), (2, 10106495040), (3, 6737663360), (4, 5053247520), (5, 4042598016), (6, 3368831680), (8, 2526623760), (10, 2021299008), (12, 1684415840), (15, 1347532672), (16, 1263311880), (20, 1010649504), (24, 842207920), (30, 673766336), (32, 631655940), (40, 505324752), (48, 421103960), (60, 336883168), (64, 315827970), (80, 252662376), (96, 210551980), (120, 168441584), (128, 157913985), (160, 126331188), (192, 105275990), (240, 84220792), (320, 63165594), (384, 52637995), (480, 42110396), (640, 31582797), (757, 26701440), (960, 21055198), (1514, 13350720), (1920, 10527599), (2271, 8900480), (3028, 6675360), (3785, 5340288), (4542, 4450240), (6056, 3337680), (7570, 2670144), (9084, 2225120), (11355, 1780096), (12112, 1668840), (13907, 1453440), (15140, 1335072), (18168, 1112560), (22710, 890048), (24224, 834420), (27814, 726720), (30280, 667536), (36336, 556280), (41721, 484480), (45420, 445024), (48448, 417210), (55628, 363360), (60560, 333768), (69535, 290688), (72672, 278140), (83442, 242240), (90840, 222512), (96896, 208605), (111256, 181680), (121120, 166884), (139070, 145344)]