900280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 2060640

約数和(自身を除く): 1160360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 317, 355, 568, 634, 710, 1268, 1420, 1585, 2536, 2840, 3170, 6340, 12680, 22507, 45014, 90028, 112535, 180056, 225070, 450140, 900280]

約数ペア:

[(1, 900280), (2, 450140), (4, 225070), (5, 180056), (8, 112535), (10, 90028), (20, 45014), (40, 22507), (71, 12680), (142, 6340), (284, 3170), (317, 2840), (355, 2536), (568, 1585), (634, 1420), (710, 1268)]