12172840

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1867}}^1$

素因数の和:2041

約数の個数: 32

約数和(自身を含む): 27571680

約数和(自身を除く): 15398840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 1867, 3260, 3734, 6520, 7468, 9335, 14936, 18670, 37340, 74680, 304321, 608642, 1217284, 1521605, 2434568, 3043210, 6086420, 12172840]

約数ペア:

[(1, 12172840), (2, 6086420), (4, 3043210), (5, 2434568), (8, 1521605), (10, 1217284), (20, 608642), (40, 304321), (163, 74680), (326, 37340), (652, 18670), (815, 14936), (1304, 9335), (1630, 7468), (1867, 6520), (3260, 3734)]