31447240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71471}}^1$

素因数の和:71493

約数の個数: 32

約数和(自身を含む): 77189760

約数和(自身を除く): 45742520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 71471, 142942, 285884, 357355, 571768, 714710, 786181, 1429420, 1572362, 2858840, 3144724, 3930905, 6289448, 7861810, 15723620, 31447240]

約数ペア:

[(1, 31447240), (2, 15723620), (4, 7861810), (5, 6289448), (8, 3930905), (10, 3144724), (11, 2858840), (20, 1572362), (22, 1429420), (40, 786181), (44, 714710), (55, 571768), (88, 357355), (110, 285884), (220, 142942), (440, 71471)]