388581260

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{72227}}^1$

素因数の和:72505

約数の個数: 24

約数和(自身を含む): 819065520

約数和(自身を除く): 430484260

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5380, 72227, 144454, 288908, 361135, 722270, 1444540, 19429063, 38858126, 77716252, 97145315, 194290630, 388581260]

約数ペア:

[(1, 388581260), (2, 194290630), (4, 97145315), (5, 77716252), (10, 38858126), (20, 19429063), (269, 1444540), (538, 722270), (1076, 361135), (1345, 288908), (2690, 144454), (5380, 72227)]