15981275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1213}}^1$

素因数の和:1271

約数の個数: 24

約数和(自身を含む): 21677184

約数和(自身を除く): 5695909

約数列:

[1, 5, 17, 25, 31, 85, 155, 425, 527, 775, 1213, 2635, 6065, 13175, 20621, 30325, 37603, 103105, 188015, 515525, 639251, 940075, 3196255, 15981275]

約数ペア:

[(1, 15981275), (5, 3196255), (17, 940075), (25, 639251), (31, 515525), (85, 188015), (155, 103105), (425, 37603), (527, 30325), (775, 20621), (1213, 13175), (2635, 6065)]