2763280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2657}}^1$

素因数の和:2683

約数の個数: 40

約数和(自身を含む): 6921432

約数和(自身を除く): 4158152

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2657, 5314, 10628, 13285, 21256, 26570, 34541, 42512, 53140, 69082, 106280, 138164, 172705, 212560, 276328, 345410, 552656, 690820, 1381640, 2763280]

約数ペア:

[(1, 2763280), (2, 1381640), (4, 690820), (5, 552656), (8, 345410), (10, 276328), (13, 212560), (16, 172705), (20, 138164), (26, 106280), (40, 69082), (52, 53140), (65, 42512), (80, 34541), (104, 26570), (130, 21256), (208, 13285), (260, 10628), (520, 5314), (1040, 2657)]