200021840

素因数分解:

$2^4\times 5^1\times {\mathrm{2500273}}^1$

素因数の和:2500286

約数の個数: 20

約数和(自身を含む): 465050964

約数和(自身を除く): 265029124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2500273, 5000546, 10001092, 12501365, 20002184, 25002730, 40004368, 50005460, 100010920, 200021840]

約数ペア:

[(1, 200021840), (2, 100010920), (4, 50005460), (5, 40004368), (8, 25002730), (10, 20002184), (16, 12501365), (20, 10001092), (40, 5000546), (80, 2500273)]