91141280

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^2\times {\mathrm{113}}^1$

素因数の和:270

約数の個数: 72

約数和(自身を含む): 220329396

約数和(自身を除く): 129188116

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 113, 142, 160, 226, 284, 355, 452, 565, 568, 710, 904, 1130, 1136, 1420, 1808, 2260, 2272, 2840, 3616, 4520, 5041, 5680, 8023, 9040, 10082, 11360, 16046, 18080, 20164, 25205, 32092, 40115, 40328, 50410, 64184, 80230, 80656, 100820, 128368, 160460, 161312, 201640, 256736, 320920, 403280, 569633, 641840, 806560, 1139266, 1283680, 2278532, 2848165, 4557064, 5696330, 9114128, 11392660, 18228256, 22785320, 45570640, 91141280]

約数ペア:

[(1, 91141280), (2, 45570640), (4, 22785320), (5, 18228256), (8, 11392660), (10, 9114128), (16, 5696330), (20, 4557064), (32, 2848165), (40, 2278532), (71, 1283680), (80, 1139266), (113, 806560), (142, 641840), (160, 569633), (226, 403280), (284, 320920), (355, 256736), (452, 201640), (565, 161312), (568, 160460), (710, 128368), (904, 100820), (1130, 80656), (1136, 80230), (1420, 64184), (1808, 50410), (2260, 40328), (2272, 40115), (2840, 32092), (3616, 25205), (4520, 20164), (5041, 18080), (5680, 16046), (8023, 11360), (9040, 10082)]