13420420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{727}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 30820608

約数和(自身を除く): 17400188

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 727, 923, 1420, 1454, 1846, 2908, 3635, 3692, 4615, 7270, 9230, 9451, 14540, 18460, 18902, 37804, 47255, 51617, 94510, 103234, 189020, 206468, 258085, 516170, 671021, 1032340, 1342042, 2684084, 3355105, 6710210, 13420420]

約数ペア:

[(1, 13420420), (2, 6710210), (4, 3355105), (5, 2684084), (10, 1342042), (13, 1032340), (20, 671021), (26, 516170), (52, 258085), (65, 206468), (71, 189020), (130, 103234), (142, 94510), (260, 51617), (284, 47255), (355, 37804), (710, 18902), (727, 18460), (923, 14540), (1420, 9451), (1454, 9230), (1846, 7270), (2908, 4615), (3635, 3692)]