1620134020

素因数分解:

$2^2\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{78571}}^1$

素因数の和:79611

約数の個数: 24

約数和(自身を含む): 3405624768

約数和(自身を除く): 1785490748

約数列:

[1, 2, 4, 5, 10, 20, 1031, 2062, 4124, 5155, 10310, 20620, 78571, 157142, 314284, 392855, 785710, 1571420, 81006701, 162013402, 324026804, 405033505, 810067010, 1620134020]

約数ペア:

[(1, 1620134020), (2, 810067010), (4, 405033505), (5, 324026804), (10, 162013402), (20, 81006701), (1031, 1571420), (2062, 785710), (4124, 392855), (5155, 314284), (10310, 157142), (20620, 78571)]