28536380

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{18061}}^1$

素因数の和:18149

約数の個数: 24

約数和(自身を含む): 60688320

約数和(自身を除く): 32151940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 18061, 36122, 72244, 90305, 180610, 361220, 1426819, 2853638, 5707276, 7134095, 14268190, 28536380]

約数ペア:

[(1, 28536380), (2, 14268190), (4, 7134095), (5, 5707276), (10, 2853638), (20, 1426819), (79, 361220), (158, 180610), (316, 90305), (395, 72244), (790, 36122), (1580, 18061)]