15920540

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^2$

素因数の和:294

約数の個数: 36

約数和(自身を含む): 34246296

約数和(自身を除く): 18325756

約数列:

[1, 2, 4, 5, 10, 20, 67, 109, 134, 218, 268, 335, 436, 545, 670, 1090, 1340, 2180, 7303, 11881, 14606, 23762, 29212, 36515, 47524, 59405, 73030, 118810, 146060, 237620, 796027, 1592054, 3184108, 3980135, 7960270, 15920540]

約数ペア:

[(1, 15920540), (2, 7960270), (4, 3980135), (5, 3184108), (10, 1592054), (20, 796027), (67, 237620), (109, 146060), (134, 118810), (218, 73030), (268, 59405), (335, 47524), (436, 36515), (545, 29212), (670, 23762), (1090, 14606), (1340, 11881), (2180, 7303)]