19998145960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1326137}}^1$

素因数の和:1326190

約数の個数: 64

約数和(自身を含む): 50128016400

約数和(自身を除く): 30129870440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1160, 1508, 1885, 3016, 3770, 7540, 15080, 1326137, 2652274, 5304548, 6630685, 10609096, 13261370, 17239781, 26522740, 34479562, 38457973, 53045480, 68959124, 76915946, 86198905, 137918248, 153831892, 172397810, 192289865, 307663784, 344795620, 384579730, 499953649, 689591240, 769159460, 999907298, 1538318920, 1999814596, 2499768245, 3999629192, 4999536490, 9999072980, 19998145960]

約数ペア:

[(1, 19998145960), (2, 9999072980), (4, 4999536490), (5, 3999629192), (8, 2499768245), (10, 1999814596), (13, 1538318920), (20, 999907298), (26, 769159460), (29, 689591240), (40, 499953649), (52, 384579730), (58, 344795620), (65, 307663784), (104, 192289865), (116, 172397810), (130, 153831892), (145, 137918248), (232, 86198905), (260, 76915946), (290, 68959124), (377, 53045480), (520, 38457973), (580, 34479562), (754, 26522740), (1160, 17239781), (1508, 13261370), (1885, 10609096), (3016, 6630685), (3770, 5304548), (7540, 2652274), (15080, 1326137)]