90537760

素因数分解:

$2^5\times 5^1\times {\mathrm{571}}^1\times {\mathrm{991}}^1$

素因数の和:1577

約数の個数: 48

約数和(自身を含む): 214486272

約数和(自身を除く): 123948512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 571, 991, 1142, 1982, 2284, 2855, 3964, 4568, 4955, 5710, 7928, 9136, 9910, 11420, 15856, 18272, 19820, 22840, 31712, 39640, 45680, 79280, 91360, 158560, 565861, 1131722, 2263444, 2829305, 4526888, 5658610, 9053776, 11317220, 18107552, 22634440, 45268880, 90537760]

約数ペア:

[(1, 90537760), (2, 45268880), (4, 22634440), (5, 18107552), (8, 11317220), (10, 9053776), (16, 5658610), (20, 4526888), (32, 2829305), (40, 2263444), (80, 1131722), (160, 565861), (571, 158560), (991, 91360), (1142, 79280), (1982, 45680), (2284, 39640), (2855, 31712), (3964, 22840), (4568, 19820), (4955, 18272), (5710, 15856), (7928, 11420), (9136, 9910)]