20474780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53881}}^1$

素因数の和:53909

約数の個数: 24

約数和(自身を含む): 45260880

約数和(自身を除く): 24786100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53881, 107762, 215524, 269405, 538810, 1023739, 1077620, 2047478, 4094956, 5118695, 10237390, 20474780]

約数ペア:

[(1, 20474780), (2, 10237390), (4, 5118695), (5, 4094956), (10, 2047478), (19, 1077620), (20, 1023739), (38, 538810), (76, 269405), (95, 215524), (190, 107762), (380, 53881)]