331320680

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{11987}}^1$

素因数の和:12689

約数の個数: 32

約数和(自身を含む): 746612640

約数和(自身を除く): 415291960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3455, 5528, 6910, 11987, 13820, 23974, 27640, 47948, 59935, 95896, 119870, 239740, 479480, 8283017, 16566034, 33132068, 41415085, 66264136, 82830170, 165660340, 331320680]

約数ペア:

[(1, 331320680), (2, 165660340), (4, 82830170), (5, 66264136), (8, 41415085), (10, 33132068), (20, 16566034), (40, 8283017), (691, 479480), (1382, 239740), (2764, 119870), (3455, 95896), (5528, 59935), (6910, 47948), (11987, 27640), (13820, 23974)]