1311080

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{449}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 2997000

約数和(自身を除く): 1685920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 449, 584, 730, 898, 1460, 1796, 2245, 2920, 3592, 4490, 8980, 17960, 32777, 65554, 131108, 163885, 262216, 327770, 655540, 1311080]

約数ペア:

[(1, 1311080), (2, 655540), (4, 327770), (5, 262216), (8, 163885), (10, 131108), (20, 65554), (40, 32777), (73, 17960), (146, 8980), (292, 4490), (365, 3592), (449, 2920), (584, 2245), (730, 1796), (898, 1460)]