19870293625

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{4271}}^1$

素因数の和:4715

約数の個数: 64

約数和(自身を含む): 30602557440

約数和(自身を除く): 10732263815

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 125, 175, 325, 409, 455, 875, 1625, 2045, 2275, 2863, 4271, 5317, 10225, 11375, 14315, 21355, 26585, 29897, 37219, 51125, 55523, 71575, 106775, 132925, 149485, 186095, 277615, 357875, 388661, 533875, 664625, 747425, 930475, 1388075, 1746839, 1943305, 3737125, 4652375, 6940375, 8734195, 9716525, 12227873, 22708907, 43670975, 48582625, 61139365, 113544535, 158962349, 218354875, 305696825, 567722675, 794811745, 1528484125, 2838613375, 3974058725, 19870293625]

約数ペア:

[(1, 19870293625), (5, 3974058725), (7, 2838613375), (13, 1528484125), (25, 794811745), (35, 567722675), (65, 305696825), (91, 218354875), (125, 158962349), (175, 113544535), (325, 61139365), (409, 48582625), (455, 43670975), (875, 22708907), (1625, 12227873), (2045, 9716525), (2275, 8734195), (2863, 6940375), (4271, 4652375), (5317, 3737125), (10225, 1943305), (11375, 1746839), (14315, 1388075), (21355, 930475), (26585, 747425), (29897, 664625), (37219, 533875), (51125, 388661), (55523, 357875), (71575, 277615), (106775, 186095), (132925, 149485)]