28119260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{79}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 66185280

約数和(自身を除く): 38066020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 79, 130, 148, 158, 185, 260, 316, 370, 395, 481, 740, 790, 962, 1027, 1369, 1580, 1924, 2054, 2405, 2738, 2923, 4108, 4810, 5135, 5476, 5846, 6845, 9620, 10270, 11692, 13690, 14615, 17797, 20540, 27380, 29230, 35594, 37999, 58460, 71188, 75998, 88985, 108151, 151996, 177970, 189995, 216302, 355940, 379990, 432604, 540755, 759980, 1081510, 1405963, 2163020, 2811926, 5623852, 7029815, 14059630, 28119260]

約数ペア:

[(1, 28119260), (2, 14059630), (4, 7029815), (5, 5623852), (10, 2811926), (13, 2163020), (20, 1405963), (26, 1081510), (37, 759980), (52, 540755), (65, 432604), (74, 379990), (79, 355940), (130, 216302), (148, 189995), (158, 177970), (185, 151996), (260, 108151), (316, 88985), (370, 75998), (395, 71188), (481, 58460), (740, 37999), (790, 35594), (962, 29230), (1027, 27380), (1369, 20540), (1580, 17797), (1924, 14615), (2054, 13690), (2405, 11692), (2738, 10270), (2923, 9620), (4108, 6845), (4810, 5846), (5135, 5476)]