90407680

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6421}}^1$

素因数の和:6453

約数の個数: 72

約数和(自身を含む): 236278224

約数和(自身を除く): 145870544

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2816, 3520, 6421, 7040, 12842, 14080, 25684, 32105, 51368, 64210, 70631, 102736, 128420, 141262, 205472, 256840, 282524, 353155, 410944, 513680, 565048, 706310, 821888, 1027360, 1130096, 1412620, 1643776, 2054720, 2260192, 2825240, 4109440, 4520384, 5650480, 8218880, 9040768, 11300960, 18081536, 22601920, 45203840, 90407680]

約数ペア:

[(1, 90407680), (2, 45203840), (4, 22601920), (5, 18081536), (8, 11300960), (10, 9040768), (11, 8218880), (16, 5650480), (20, 4520384), (22, 4109440), (32, 2825240), (40, 2260192), (44, 2054720), (55, 1643776), (64, 1412620), (80, 1130096), (88, 1027360), (110, 821888), (128, 706310), (160, 565048), (176, 513680), (220, 410944), (256, 353155), (320, 282524), (352, 256840), (440, 205472), (640, 141262), (704, 128420), (880, 102736), (1280, 70631), (1408, 64210), (1760, 51368), (2816, 32105), (3520, 25684), (6421, 14080), (7040, 12842)]