8939420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{63853}}^1$

素因数の和:63869

約数の個数: 24

約数和(自身を含む): 21454944

約数和(自身を除く): 12515524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 63853, 127706, 255412, 319265, 446971, 638530, 893942, 1277060, 1787884, 2234855, 4469710, 8939420]

約数ペア:

[(1, 8939420), (2, 4469710), (4, 2234855), (5, 1787884), (7, 1277060), (10, 893942), (14, 638530), (20, 446971), (28, 319265), (35, 255412), (70, 127706), (140, 63853)]