20364525

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3121}}^1$

素因数の和:3166

約数の個数: 36

約数和(自身を含む): 37744980

約数和(自身を除く): 17380455

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 3121, 6525, 9363, 15605, 28089, 46815, 78025, 90509, 140445, 234075, 271527, 452545, 702225, 814581, 1357635, 2262725, 4072905, 6788175, 20364525]

約数ペア:

[(1, 20364525), (3, 6788175), (5, 4072905), (9, 2262725), (15, 1357635), (25, 814581), (29, 702225), (45, 452545), (75, 271527), (87, 234075), (145, 140445), (225, 90509), (261, 78025), (435, 46815), (725, 28089), (1305, 15605), (2175, 9363), (3121, 6525)]