61987660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{442769}}^1$

素因数の和:442785

約数の個数: 24

約数和(自身を含む): 148770720

約数和(自身を除く): 86783060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 442769, 885538, 1771076, 2213845, 3099383, 4427690, 6198766, 8855380, 12397532, 15496915, 30993830, 61987660]

約数ペア:

[(1, 61987660), (2, 30993830), (4, 15496915), (5, 12397532), (7, 8855380), (10, 6198766), (14, 4427690), (20, 3099383), (28, 2213845), (35, 1771076), (70, 885538), (140, 442769)]