71662840

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{12889}}^1$

素因数の和:13039

約数の個数: 32

約数和(自身を含む): 162414000

約数和(自身を除く): 90751160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 12889, 25778, 51556, 64445, 103112, 128890, 257780, 515560, 1791571, 3583142, 7166284, 8957855, 14332568, 17915710, 35831420, 71662840]

約数ペア:

[(1, 71662840), (2, 35831420), (4, 17915710), (5, 14332568), (8, 8957855), (10, 7166284), (20, 3583142), (40, 1791571), (139, 515560), (278, 257780), (556, 128890), (695, 103112), (1112, 64445), (1390, 51556), (2780, 25778), (5560, 12889)]