61848980

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{7561}}^1$

素因数の和:7979

約数の個数: 24

約数和(自身を含む): 130217640

約数和(自身を除く): 68368660

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 7561, 8180, 15122, 30244, 37805, 75610, 151220, 3092449, 6184898, 12369796, 15462245, 30924490, 61848980]

約数ペア:

[(1, 61848980), (2, 30924490), (4, 15462245), (5, 12369796), (10, 6184898), (20, 3092449), (409, 151220), (818, 75610), (1636, 37805), (2045, 30244), (4090, 15122), (7561, 8180)]