4020200

素因数分解:

$2^3\times 5^2\times {\mathrm{20101}}^1$

素因数の和:20117

約数の個数: 24

約数和(自身を含む): 9347430

約数和(自身を除く): 5327230

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 20101, 40202, 80404, 100505, 160808, 201010, 402020, 502525, 804040, 1005050, 2010100, 4020200]

約数ペア:

[(1, 4020200), (2, 2010100), (4, 1005050), (5, 804040), (8, 502525), (10, 402020), (20, 201010), (25, 160808), (40, 100505), (50, 80404), (100, 40202), (200, 20101)]