389806120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{885923}}^1$

素因数の和:885945

約数の個数: 32

約数和(自身を含む): 956797920

約数和(自身を除く): 566991800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 885923, 1771846, 3543692, 4429615, 7087384, 8859230, 9745153, 17718460, 19490306, 35436920, 38980612, 48725765, 77961224, 97451530, 194903060, 389806120]

約数ペア:

[(1, 389806120), (2, 194903060), (4, 97451530), (5, 77961224), (8, 48725765), (10, 38980612), (11, 35436920), (20, 19490306), (22, 17718460), (40, 9745153), (44, 8859230), (55, 7087384), (88, 4429615), (110, 3543692), (220, 1771846), (440, 885923)]