18218025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 38301120

約数和(自身を除く): 20083095

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 43, 45, 63, 75, 105, 129, 175, 215, 225, 269, 301, 315, 387, 525, 645, 807, 903, 1075, 1345, 1505, 1575, 1883, 1935, 2421, 2709, 3225, 4035, 4515, 5649, 6725, 7525, 9415, 9675, 11567, 12105, 13545, 16947, 20175, 22575, 28245, 34701, 47075, 57835, 60525, 67725, 80969, 84735, 104103, 141225, 173505, 242907, 289175, 404845, 423675, 520515, 728721, 867525, 1214535, 2024225, 2602575, 3643605, 6072675, 18218025]

約数ペア:

[(1, 18218025), (3, 6072675), (5, 3643605), (7, 2602575), (9, 2024225), (15, 1214535), (21, 867525), (25, 728721), (35, 520515), (43, 423675), (45, 404845), (63, 289175), (75, 242907), (105, 173505), (129, 141225), (175, 104103), (215, 84735), (225, 80969), (269, 67725), (301, 60525), (315, 57835), (387, 47075), (525, 34701), (645, 28245), (807, 22575), (903, 20175), (1075, 16947), (1345, 13545), (1505, 12105), (1575, 11567), (1883, 9675), (1935, 9415), (2421, 7525), (2709, 6725), (3225, 5649), (4035, 4515)]