19990322444

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{1289}}^1\times {\mathrm{63559}}^1$

素因数の和:64913

約数の個数: 24

約数和(自身を含む): 35584701600

約数和(自身を除く): 15594379156

約数列:

[1, 2, 4, 61, 122, 244, 1289, 2578, 5156, 63559, 78629, 127118, 157258, 254236, 314516, 3877099, 7754198, 15508396, 81927551, 163855102, 327710204, 4997580611, 9995161222, 19990322444]

約数ペア:

[(1, 19990322444), (2, 9995161222), (4, 4997580611), (61, 327710204), (122, 163855102), (244, 81927551), (1289, 15508396), (2578, 7754198), (5156, 3877099), (63559, 314516), (78629, 254236), (127118, 157258)]