12881725

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 17088192

約数和(自身を除く): 4206467

約数列:

[1, 5, 23, 25, 43, 115, 215, 521, 575, 989, 1075, 2605, 4945, 11983, 13025, 22403, 24725, 59915, 112015, 299575, 515269, 560075, 2576345, 12881725]

約数ペア:

[(1, 12881725), (5, 2576345), (23, 560075), (25, 515269), (43, 299575), (115, 112015), (215, 59915), (521, 24725), (575, 22403), (989, 13025), (1075, 11983), (2605, 4945)]