179980040

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{61637}}^1$

素因数の和:61721

約数の個数: 32

約数和(自身を含む): 410509080

約数和(自身を除く): 230529040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 61637, 123274, 246548, 308185, 493096, 616370, 1232740, 2465480, 4499501, 8999002, 17998004, 22497505, 35996008, 44995010, 89990020, 179980040]

約数ペア:

[(1, 179980040), (2, 89990020), (4, 44995010), (5, 35996008), (8, 22497505), (10, 17998004), (20, 8999002), (40, 4499501), (73, 2465480), (146, 1232740), (292, 616370), (365, 493096), (584, 308185), (730, 246548), (1460, 123274), (2920, 61637)]