13520725

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:405

約数の個数: 24

約数和(自身を含む): 17641728

約数和(自身を除く): 4121003

約数列:

[1, 5, 25, 37, 47, 185, 235, 311, 925, 1175, 1555, 1739, 7775, 8695, 11507, 14617, 43475, 57535, 73085, 287675, 365425, 540829, 2704145, 13520725]

約数ペア:

[(1, 13520725), (5, 2704145), (25, 540829), (37, 365425), (47, 287675), (185, 73085), (235, 57535), (311, 43475), (925, 14617), (1175, 11507), (1555, 8695), (1739, 7775)]