78990988

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{409}}^1\times {\mathrm{911}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 141341760

約数和(自身を除く): 62350772

約数列:

[1, 2, 4, 53, 106, 212, 409, 818, 911, 1636, 1822, 3644, 21677, 43354, 48283, 86708, 96566, 193132, 372599, 745198, 1490396, 19747747, 39495494, 78990988]

約数ペア:

[(1, 78990988), (2, 39495494), (4, 19747747), (53, 1490396), (106, 745198), (212, 372599), (409, 193132), (818, 96566), (911, 86708), (1636, 48283), (1822, 43354), (3644, 21677)]