331464725

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{787}}^1\times {\mathrm{991}}^1$

素因数の和:1805

約数の個数: 24

約数和(自身を含む): 436186368

約数和(自身を除く): 104721643

約数列:

[1, 5, 17, 25, 85, 425, 787, 991, 3935, 4955, 13379, 16847, 19675, 24775, 66895, 84235, 334475, 421175, 779917, 3899585, 13258589, 19497925, 66292945, 331464725]

約数ペア:

[(1, 331464725), (5, 66292945), (17, 19497925), (25, 13258589), (85, 3899585), (425, 779917), (787, 421175), (991, 334475), (3935, 84235), (4955, 66895), (13379, 24775), (16847, 19675)]