221427710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{166487}}^1$

素因数の和:166520

約数の個数: 32

約数和(自身を含む): 479485440

約数和(自身を除く): 258057730

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 166487, 332974, 832435, 1165409, 1664870, 2330818, 3163253, 5827045, 6326506, 11654090, 15816265, 22142771, 31632530, 44285542, 110713855, 221427710]

約数ペア:

[(1, 221427710), (2, 110713855), (5, 44285542), (7, 31632530), (10, 22142771), (14, 15816265), (19, 11654090), (35, 6326506), (38, 5827045), (70, 3163253), (95, 2330818), (133, 1664870), (190, 1165409), (266, 832435), (665, 332974), (1330, 166487)]