99111580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{81239}}^1$

素因数の和:81309

約数の個数: 24

約数和(自身を含む): 211548960

約数和(自身を除く): 112437380

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 81239, 162478, 324956, 406195, 812390, 1624780, 4955579, 9911158, 19822316, 24777895, 49555790, 99111580]

約数ペア:

[(1, 99111580), (2, 49555790), (4, 24777895), (5, 19822316), (10, 9911158), (20, 4955579), (61, 1624780), (122, 812390), (244, 406195), (305, 324956), (610, 162478), (1220, 81239)]