20411025

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{6329}}^1$

素因数の和:6385

約数の個数: 24

約数和(自身を含む): 34536480

約数和(自身を除く): 14125455

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 6329, 18987, 31645, 94935, 158225, 272147, 474675, 816441, 1360735, 4082205, 6803675, 20411025]

約数ペア:

[(1, 20411025), (3, 6803675), (5, 4082205), (15, 1360735), (25, 816441), (43, 474675), (75, 272147), (129, 158225), (215, 94935), (645, 31645), (1075, 18987), (3225, 6329)]