78120290

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1\times {\mathrm{269}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 142942320

約数和(自身を除く): 64822030

約数列:

[1, 2, 5, 10, 113, 226, 257, 269, 514, 538, 565, 1130, 1285, 1345, 2570, 2690, 29041, 30397, 58082, 60794, 69133, 138266, 145205, 151985, 290410, 303970, 345665, 691330, 7812029, 15624058, 39060145, 78120290]

約数ペア:

[(1, 78120290), (2, 39060145), (5, 15624058), (10, 7812029), (113, 691330), (226, 345665), (257, 303970), (269, 290410), (514, 151985), (538, 145205), (565, 138266), (1130, 69133), (1285, 60794), (1345, 58082), (2570, 30397), (2690, 29041)]