127934960

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{3257}}^1$

素因数の和:3761

約数の個数: 40

約数和(自身を含む): 298146096

約数和(自身を除く): 170211136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 2455, 3257, 3928, 4910, 6514, 7856, 9820, 13028, 16285, 19640, 26056, 32570, 39280, 52112, 65140, 130280, 260560, 1599187, 3198374, 6396748, 7995935, 12793496, 15991870, 25586992, 31983740, 63967480, 127934960]

約数ペア:

[(1, 127934960), (2, 63967480), (4, 31983740), (5, 25586992), (8, 15991870), (10, 12793496), (16, 7995935), (20, 6396748), (40, 3198374), (80, 1599187), (491, 260560), (982, 130280), (1964, 65140), (2455, 52112), (3257, 39280), (3928, 32570), (4910, 26056), (6514, 19640), (7856, 16285), (9820, 13028)]