89131355

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 116121600

約数和(自身を除く): 26990245

約数列:

[1, 5, 29, 31, 79, 145, 155, 251, 395, 899, 1255, 2291, 2449, 4495, 7279, 7781, 11455, 12245, 19829, 36395, 38905, 71021, 99145, 225649, 355105, 575041, 614699, 1128245, 2875205, 3073495, 17826271, 89131355]

約数ペア:

[(1, 89131355), (5, 17826271), (29, 3073495), (31, 2875205), (79, 1128245), (145, 614699), (155, 575041), (251, 355105), (395, 225649), (899, 99145), (1255, 71021), (2291, 38905), (2449, 36395), (4495, 19829), (7279, 12245), (7781, 11455)]