20372425

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:409

約数の個数: 24

約数和(自身を含む): 26442752

約数和(自身を除く): 6070327

約数列:

[1, 5, 25, 31, 97, 155, 271, 485, 775, 1355, 2425, 3007, 6775, 8401, 15035, 26287, 42005, 75175, 131435, 210025, 657175, 814897, 4074485, 20372425]

約数ペア:

[(1, 20372425), (5, 4074485), (25, 814897), (31, 657175), (97, 210025), (155, 131435), (271, 75175), (485, 42005), (775, 26287), (1355, 15035), (2425, 8401), (3007, 6775)]