81855660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31727}}^1$

素因数の和:31782

約数の個数: 48

約数和(自身を含む): 234533376

約数和(自身を除く): 152677716

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 31727, 63454, 95181, 126908, 158635, 190362, 317270, 380724, 475905, 634540, 951810, 1364261, 1903620, 2728522, 4092783, 5457044, 6821305, 8185566, 13642610, 16371132, 20463915, 27285220, 40927830, 81855660]

約数ペア:

[(1, 81855660), (2, 40927830), (3, 27285220), (4, 20463915), (5, 16371132), (6, 13642610), (10, 8185566), (12, 6821305), (15, 5457044), (20, 4092783), (30, 2728522), (43, 1903620), (60, 1364261), (86, 951810), (129, 634540), (172, 475905), (215, 380724), (258, 317270), (430, 190362), (516, 158635), (645, 126908), (860, 95181), (1290, 63454), (2580, 31727)]