20870800

素因数分解:

$2^4\times 5^2\times {\mathrm{52177}}^1$

素因数の和:52195

約数の個数: 30

約数和(自身を含む): 50143058

約数和(自身を除く): 29272258

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52177, 104354, 208708, 260885, 417416, 521770, 834832, 1043540, 1304425, 2087080, 2608850, 4174160, 5217700, 10435400, 20870800]

約数ペア:

[(1, 20870800), (2, 10435400), (4, 5217700), (5, 4174160), (8, 2608850), (10, 2087080), (16, 1304425), (20, 1043540), (25, 834832), (40, 521770), (50, 417416), (80, 260885), (100, 208708), (200, 104354), (400, 52177)]