20598075

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2129}}^1$

素因数の和:2188

約数の個数: 36

約数和(自身を含む): 37769160

約数和(自身を除く): 17171085

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 215, 225, 387, 645, 1075, 1935, 2129, 3225, 6387, 9675, 10645, 19161, 31935, 53225, 91547, 95805, 159675, 274641, 457735, 479025, 823923, 1373205, 2288675, 4119615, 6866025, 20598075]

約数ペア:

[(1, 20598075), (3, 6866025), (5, 4119615), (9, 2288675), (15, 1373205), (25, 823923), (43, 479025), (45, 457735), (75, 274641), (129, 159675), (215, 95805), (225, 91547), (387, 53225), (645, 31935), (1075, 19161), (1935, 10645), (2129, 9675), (3225, 6387)]