91287020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21839}}^1$

素因数の和:21878

約数の個数: 48

約数和(自身を含む): 220147200

約数和(自身を除く): 128860180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 21839, 43678, 87356, 109195, 218390, 240229, 414941, 436780, 480458, 829882, 960916, 1201145, 1659764, 2074705, 2402290, 4149410, 4564351, 4804580, 8298820, 9128702, 18257404, 22821755, 45643510, 91287020]

約数ペア:

[(1, 91287020), (2, 45643510), (4, 22821755), (5, 18257404), (10, 9128702), (11, 8298820), (19, 4804580), (20, 4564351), (22, 4149410), (38, 2402290), (44, 2074705), (55, 1659764), (76, 1201145), (95, 960916), (110, 829882), (190, 480458), (209, 436780), (220, 414941), (380, 240229), (418, 218390), (836, 109195), (1045, 87356), (2090, 43678), (4180, 21839)]