20391570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9851}}^1$

素因数の和:9887

約数の個数: 48

約数和(自身を含む): 55328832

約数和(自身を除く): 34937262

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 9851, 19702, 29553, 49255, 59106, 88659, 98510, 147765, 177318, 226573, 295530, 443295, 453146, 679719, 886590, 1132865, 1359438, 2039157, 2265730, 3398595, 4078314, 6797190, 10195785, 20391570]

約数ペア:

[(1, 20391570), (2, 10195785), (3, 6797190), (5, 4078314), (6, 3398595), (9, 2265730), (10, 2039157), (15, 1359438), (18, 1132865), (23, 886590), (30, 679719), (45, 453146), (46, 443295), (69, 295530), (90, 226573), (115, 177318), (138, 147765), (207, 98510), (230, 88659), (345, 59106), (414, 49255), (690, 29553), (1035, 19702), (2070, 9851)]