664691605

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{643}}^1$

素因数の和:861

約数の個数: 32

約数和(自身を含む): 851316480

約数和(自身を除く): 186624875

約数列:

[1, 5, 23, 89, 101, 115, 445, 505, 643, 2047, 2323, 3215, 8989, 10235, 11615, 14789, 44945, 57227, 64943, 73945, 206747, 286135, 324715, 1033735, 1316221, 1493689, 5779927, 6581105, 7468445, 28899635, 132938321, 664691605]

約数ペア:

[(1, 664691605), (5, 132938321), (23, 28899635), (89, 7468445), (101, 6581105), (115, 5779927), (445, 1493689), (505, 1316221), (643, 1033735), (2047, 324715), (2323, 286135), (3215, 206747), (8989, 73945), (10235, 64943), (11615, 57227), (14789, 44945)]