129405680

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{10303}}^1$

素因数の和:10473

約数の個数: 40

約数和(自身を含む): 302813952

約数和(自身を除く): 173408272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 10303, 12560, 20606, 41212, 51515, 82424, 103030, 164848, 206060, 412120, 824240, 1617571, 3235142, 6470284, 8087855, 12940568, 16175710, 25881136, 32351420, 64702840, 129405680]

約数ペア:

[(1, 129405680), (2, 64702840), (4, 32351420), (5, 25881136), (8, 16175710), (10, 12940568), (16, 8087855), (20, 6470284), (40, 3235142), (80, 1617571), (157, 824240), (314, 412120), (628, 206060), (785, 164848), (1256, 103030), (1570, 82424), (2512, 51515), (3140, 41212), (6280, 20606), (10303, 12560)]