20042164025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{16267}}^1$

素因数の和:16530

約数の個数: 48

約数和(自身を含む): 28467177984

約数和(自身を除く): 8425013959

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 223, 325, 425, 1105, 1115, 2899, 3791, 5525, 5575, 14495, 16267, 18955, 49283, 72475, 81335, 94775, 211471, 246415, 276539, 406675, 1057355, 1232075, 1382695, 3595007, 3627541, 5286775, 6913475, 17975035, 18137705, 47158033, 61668197, 89875175, 90688525, 235790165, 308340985, 801686561, 1178950825, 1541704925, 4008432805, 20042164025]

約数ペア:

[(1, 20042164025), (5, 4008432805), (13, 1541704925), (17, 1178950825), (25, 801686561), (65, 308340985), (85, 235790165), (221, 90688525), (223, 89875175), (325, 61668197), (425, 47158033), (1105, 18137705), (1115, 17975035), (2899, 6913475), (3791, 5286775), (5525, 3627541), (5575, 3595007), (14495, 1382695), (16267, 1232075), (18955, 1057355), (49283, 406675), (72475, 276539), (81335, 246415), (94775, 211471)]