20180392

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{863}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 19218008

約数列:

[1, 2, 4, 8, 37, 74, 79, 148, 158, 296, 316, 632, 863, 1726, 2923, 3452, 5846, 6904, 11692, 23384, 31931, 63862, 68177, 127724, 136354, 255448, 272708, 545416, 2522549, 5045098, 10090196, 20180392]

約数ペア:

[(1, 20180392), (2, 10090196), (4, 5045098), (8, 2522549), (37, 545416), (74, 272708), (79, 255448), (148, 136354), (158, 127724), (296, 68177), (316, 63862), (632, 31931), (863, 23384), (1726, 11692), (2923, 6904), (3452, 5846)]