28529025

素因数分解:

$3^1\times 5^2\times 7^3\times {\mathrm{1109}}^1$

素因数の和:1143

約数の個数: 48

約数和(自身を含む): 55056000

約数和(自身を除く): 26526975

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 147, 175, 245, 343, 525, 735, 1029, 1109, 1225, 1715, 3327, 3675, 5145, 5545, 7763, 8575, 16635, 23289, 25725, 27725, 38815, 54341, 83175, 116445, 163023, 194075, 271705, 380387, 582225, 815115, 1141161, 1358525, 1901935, 4075575, 5705805, 9509675, 28529025]

約数ペア:

[(1, 28529025), (3, 9509675), (5, 5705805), (7, 4075575), (15, 1901935), (21, 1358525), (25, 1141161), (35, 815115), (49, 582225), (75, 380387), (105, 271705), (147, 194075), (175, 163023), (245, 116445), (343, 83175), (525, 54341), (735, 38815), (1029, 27725), (1109, 25725), (1225, 23289), (1715, 16635), (3327, 8575), (3675, 7763), (5145, 5545)]