1628980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1031}}^1$

素因数の和:1119

約数の個数: 24

約数和(自身を含む): 3467520

約数和(自身を除く): 1838540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1031, 1580, 2062, 4124, 5155, 10310, 20620, 81449, 162898, 325796, 407245, 814490, 1628980]

約数ペア:

[(1, 1628980), (2, 814490), (4, 407245), (5, 325796), (10, 162898), (20, 81449), (79, 20620), (158, 10310), (316, 5155), (395, 4124), (790, 2062), (1031, 1580)]