397923520

素因数分解:

$2^6\times 5^1\times {\mathrm{1243511}}^1$

素因数の和:1243528

約数の個数: 28

約数和(自身を含む): 947556144

約数和(自身を除く): 549632624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1243511, 2487022, 4974044, 6217555, 9948088, 12435110, 19896176, 24870220, 39792352, 49740440, 79584704, 99480880, 198961760, 397923520]

約数ペア:

[(1, 397923520), (2, 198961760), (4, 99480880), (5, 79584704), (8, 49740440), (10, 39792352), (16, 24870220), (20, 19896176), (32, 12435110), (40, 9948088), (64, 6217555), (80, 4974044), (160, 2487022), (320, 1243511)]