20089025

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:290

約数の個数: 36

約数和(自身を含む): 28448700

約数和(自身を除く): 8359675

約数列:

[1, 5, 11, 25, 29, 55, 121, 145, 229, 275, 319, 605, 725, 1145, 1595, 2519, 3025, 3509, 5725, 6641, 7975, 12595, 17545, 27709, 33205, 62975, 73051, 87725, 138545, 166025, 365255, 692725, 803561, 1826275, 4017805, 20089025]

約数ペア:

[(1, 20089025), (5, 4017805), (11, 1826275), (25, 803561), (29, 692725), (55, 365255), (121, 166025), (145, 138545), (229, 87725), (275, 73051), (319, 62975), (605, 33205), (725, 27709), (1145, 17545), (1595, 12595), (2519, 7975), (3025, 6641), (3509, 5725)]