28167620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{827}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 64266048

約数和(自身を除く): 36098428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 827, 1310, 1654, 1703, 2620, 3308, 3406, 4135, 6812, 8270, 8515, 10751, 16540, 17030, 21502, 34060, 43004, 53755, 107510, 108337, 215020, 216674, 433348, 541685, 1083370, 1408381, 2166740, 2816762, 5633524, 7041905, 14083810, 28167620]

約数ペア:

[(1, 28167620), (2, 14083810), (4, 7041905), (5, 5633524), (10, 2816762), (13, 2166740), (20, 1408381), (26, 1083370), (52, 541685), (65, 433348), (130, 216674), (131, 215020), (260, 108337), (262, 107510), (524, 53755), (655, 43004), (827, 34060), (1310, 21502), (1654, 17030), (1703, 16540), (2620, 10751), (3308, 8515), (3406, 8270), (4135, 6812)]