18518570

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{5399}}^1$

素因数の和:5427

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 20361430

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 5399, 10798, 26995, 37793, 53990, 75586, 188965, 264551, 377930, 529102, 1322755, 1851857, 2645510, 3703714, 9259285, 18518570]

約数ペア:

[(1, 18518570), (2, 9259285), (5, 3703714), (7, 2645510), (10, 1851857), (14, 1322755), (35, 529102), (49, 377930), (70, 264551), (98, 188965), (245, 75586), (343, 53990), (490, 37793), (686, 26995), (1715, 10798), (3430, 5399)]