891036280

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{70271}}^1$

素因数の和:70599

約数の個数: 32

約数和(自身を含む): 2011184640

約数和(自身を除く): 1120148360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 6340, 12680, 70271, 140542, 281084, 351355, 562168, 702710, 1405420, 2810840, 22275907, 44551814, 89103628, 111379535, 178207256, 222759070, 445518140, 891036280]

約数ペア:

[(1, 891036280), (2, 445518140), (4, 222759070), (5, 178207256), (8, 111379535), (10, 89103628), (20, 44551814), (40, 22275907), (317, 2810840), (634, 1405420), (1268, 702710), (1585, 562168), (2536, 351355), (3170, 281084), (6340, 140542), (12680, 70271)]