30900880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9421}}^1$

素因数の和:9475

約数の個数: 40

約数和(自身を含む): 73604664

約数和(自身を除く): 42703784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 9421, 18842, 37684, 47105, 75368, 94210, 150736, 188420, 376840, 386261, 753680, 772522, 1545044, 1931305, 3090088, 3862610, 6180176, 7725220, 15450440, 30900880]

約数ペア:

[(1, 30900880), (2, 15450440), (4, 7725220), (5, 6180176), (8, 3862610), (10, 3090088), (16, 1931305), (20, 1545044), (40, 772522), (41, 753680), (80, 386261), (82, 376840), (164, 188420), (205, 150736), (328, 94210), (410, 75368), (656, 47105), (820, 37684), (1640, 18842), (3280, 9421)]