27966640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{26891}}^1$

素因数の和:26917

約数の個数: 40

約数和(自身を含む): 70026768

約数和(自身を除く): 42060128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 26891, 53782, 107564, 134455, 215128, 268910, 349583, 430256, 537820, 699166, 1075640, 1398332, 1747915, 2151280, 2796664, 3495830, 5593328, 6991660, 13983320, 27966640]

約数ペア:

[(1, 27966640), (2, 13983320), (4, 6991660), (5, 5593328), (8, 3495830), (10, 2796664), (13, 2151280), (16, 1747915), (20, 1398332), (26, 1075640), (40, 699166), (52, 537820), (65, 430256), (80, 349583), (104, 268910), (130, 215128), (208, 134455), (260, 107564), (520, 53782), (1040, 26891)]