388403740

素因数分解:

$2^2\times 5^1\times {\mathrm{1447}}^1\times {\mathrm{13421}}^1$

素因数の和:14877

約数の個数: 24

約数和(自身を含む): 816272352

約数和(自身を除く): 427868612

約数列:

[1, 2, 4, 5, 10, 20, 1447, 2894, 5788, 7235, 13421, 14470, 26842, 28940, 53684, 67105, 134210, 268420, 19420187, 38840374, 77680748, 97100935, 194201870, 388403740]

約数ペア:

[(1, 388403740), (2, 194201870), (4, 97100935), (5, 77680748), (10, 38840374), (20, 19420187), (1447, 268420), (2894, 134210), (5788, 67105), (7235, 53684), (13421, 28940), (14470, 26842)]