71284720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68543}}^1$

素因数の和:68569

約数の個数: 40

約数和(自身を含む): 178488576

約数和(自身を除く): 107203856

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 68543, 137086, 274172, 342715, 548344, 685430, 891059, 1096688, 1370860, 1782118, 2741720, 3564236, 4455295, 5483440, 7128472, 8910590, 14256944, 17821180, 35642360, 71284720]

約数ペア:

[(1, 71284720), (2, 35642360), (4, 17821180), (5, 14256944), (8, 8910590), (10, 7128472), (13, 5483440), (16, 4455295), (20, 3564236), (26, 2741720), (40, 1782118), (52, 1370860), (65, 1096688), (80, 891059), (104, 685430), (130, 548344), (208, 342715), (260, 274172), (520, 137086), (1040, 68543)]