20218708940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2050579}}^1$

素因数の和:2050634

約数の個数: 48

約数和(自身を含む): 46507154400

約数和(自身を除く): 26288445460

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 290, 340, 493, 580, 986, 1972, 2465, 4930, 9860, 2050579, 4101158, 8202316, 10252895, 20505790, 34859843, 41011580, 59466791, 69719686, 118933582, 139439372, 174299215, 237867164, 297333955, 348598430, 594667910, 697196860, 1010935447, 1189335820, 2021870894, 4043741788, 5054677235, 10109354470, 20218708940]

約数ペア:

[(1, 20218708940), (2, 10109354470), (4, 5054677235), (5, 4043741788), (10, 2021870894), (17, 1189335820), (20, 1010935447), (29, 697196860), (34, 594667910), (58, 348598430), (68, 297333955), (85, 237867164), (116, 174299215), (145, 139439372), (170, 118933582), (290, 69719686), (340, 59466791), (493, 41011580), (580, 34859843), (986, 20505790), (1972, 10252895), (2465, 8202316), (4930, 4101158), (9860, 2050579)]