28425520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18701}}^1$

素因数の和:18733

約数の個数: 40

約数和(自身を含む): 69571440

約数和(自身を除く): 41145920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18701, 37402, 74804, 93505, 149608, 187010, 299216, 355319, 374020, 710638, 748040, 1421276, 1496080, 1776595, 2842552, 3553190, 5685104, 7106380, 14212760, 28425520]

約数ペア:

[(1, 28425520), (2, 14212760), (4, 7106380), (5, 5685104), (8, 3553190), (10, 2842552), (16, 1776595), (19, 1496080), (20, 1421276), (38, 748040), (40, 710638), (76, 374020), (80, 355319), (95, 299216), (152, 187010), (190, 149608), (304, 93505), (380, 74804), (760, 37402), (1520, 18701)]