99681477380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{81706129}}^1$

素因数の和:81706199

約数の個数: 24

約数和(自身を含む): 212762762520

約数和(自身を除く): 113081285140

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 81706129, 163412258, 326824516, 408530645, 817061290, 1634122580, 4984073869, 9968147738, 19936295476, 24920369345, 49840738690, 99681477380]

約数ペア:

[(1, 99681477380), (2, 49840738690), (4, 24920369345), (5, 19936295476), (10, 9968147738), (20, 4984073869), (61, 1634122580), (122, 817061290), (244, 408530645), (305, 326824516), (610, 163412258), (1220, 81706129)]