1999606720

素因数分解:

$2^6\times 5^1\times {\mathrm{6248771}}^1$

素因数の和:6248788

約数の個数: 28

約数和(自身を含む): 4761564264

約数和(自身を除く): 2761957544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 6248771, 12497542, 24995084, 31243855, 49990168, 62487710, 99980336, 124975420, 199960672, 249950840, 399921344, 499901680, 999803360, 1999606720]

約数ペア:

[(1, 1999606720), (2, 999803360), (4, 499901680), (5, 399921344), (8, 249950840), (10, 199960672), (16, 124975420), (20, 99980336), (32, 62487710), (40, 49990168), (64, 31243855), (80, 24995084), (160, 12497542), (320, 6248771)]