172125020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{1223}}^1$

素因数の和:1490

約数の個数: 48

約数和(自身を含む): 375072768

約数和(自身を除く): 202947748

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 227, 310, 454, 620, 908, 1135, 1223, 2270, 2446, 4540, 4892, 6115, 7037, 12230, 14074, 24460, 28148, 35185, 37913, 70370, 75826, 140740, 151652, 189565, 277621, 379130, 555242, 758260, 1110484, 1388105, 2776210, 5552420, 8606251, 17212502, 34425004, 43031255, 86062510, 172125020]

約数ペア:

[(1, 172125020), (2, 86062510), (4, 43031255), (5, 34425004), (10, 17212502), (20, 8606251), (31, 5552420), (62, 2776210), (124, 1388105), (155, 1110484), (227, 758260), (310, 555242), (454, 379130), (620, 277621), (908, 189565), (1135, 151652), (1223, 140740), (2270, 75826), (2446, 70370), (4540, 37913), (4892, 35185), (6115, 28148), (7037, 24460), (12230, 14074)]