28615820

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{6781}}^1$

素因数の和:7001

約数の個数: 24

約数和(自身を含む): 60386928

約数和(自身を除く): 31771108

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 6781, 13562, 27124, 33905, 67810, 135620, 1430791, 2861582, 5723164, 7153955, 14307910, 28615820]

約数ペア:

[(1, 28615820), (2, 14307910), (4, 7153955), (5, 5723164), (10, 2861582), (20, 1430791), (211, 135620), (422, 67810), (844, 33905), (1055, 27124), (2110, 13562), (4220, 6781)]