12860840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18913}}^1$

素因数の和:18941

約数の個数: 32

約数和(自身を含む): 30640680

約数和(自身を除く): 17779840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 18913, 37826, 75652, 94565, 151304, 189130, 321521, 378260, 643042, 756520, 1286084, 1607605, 2572168, 3215210, 6430420, 12860840]

約数ペア:

[(1, 12860840), (2, 6430420), (4, 3215210), (5, 2572168), (8, 1607605), (10, 1286084), (17, 756520), (20, 643042), (34, 378260), (40, 321521), (68, 189130), (85, 151304), (136, 94565), (170, 75652), (340, 37826), (680, 18913)]