18197320

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2791}}^1$

素因数の和:2965

約数の個数: 32

約数和(自身を含む): 41209920

約数和(自身を除く): 23012600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 2791, 3260, 5582, 6520, 11164, 13955, 22328, 27910, 55820, 111640, 454933, 909866, 1819732, 2274665, 3639464, 4549330, 9098660, 18197320]

約数ペア:

[(1, 18197320), (2, 9098660), (4, 4549330), (5, 3639464), (8, 2274665), (10, 1819732), (20, 909866), (40, 454933), (163, 111640), (326, 55820), (652, 27910), (815, 22328), (1304, 13955), (1630, 11164), (2791, 6520), (3260, 5582)]