204555125

素因数分解:

$5^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{773}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 268051680

約数和(自身を除く): 63496555

約数列:

[1, 5, 25, 29, 73, 125, 145, 365, 725, 773, 1825, 2117, 3625, 3865, 9125, 10585, 19325, 22417, 52925, 56429, 96625, 112085, 264625, 282145, 560425, 1410725, 1636441, 2802125, 7053625, 8182205, 40911025, 204555125]

約数ペア:

[(1, 204555125), (5, 40911025), (25, 8182205), (29, 7053625), (73, 2802125), (125, 1636441), (145, 1410725), (365, 560425), (725, 282145), (773, 264625), (1825, 112085), (2117, 96625), (3625, 56429), (3865, 52925), (9125, 22417), (10585, 19325)]