1988740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7649}}^1$

素因数の和:7671

約数の個数: 24

約数和(自身を含む): 4498200

約数和(自身を除く): 2509460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 7649, 15298, 30596, 38245, 76490, 99437, 152980, 198874, 397748, 497185, 994370, 1988740]

約数ペア:

[(1, 1988740), (2, 994370), (4, 497185), (5, 397748), (10, 198874), (13, 152980), (20, 99437), (26, 76490), (52, 38245), (65, 30596), (130, 15298), (260, 7649)]