55406980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{39019}}^1$

素因数の和:39099

約数の個数: 24

約数和(自身を含む): 117996480

約数和(自身を除く): 62589500

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 39019, 78038, 156076, 195095, 390190, 780380, 2770349, 5540698, 11081396, 13851745, 27703490, 55406980]

約数ペア:

[(1, 55406980), (2, 27703490), (4, 13851745), (5, 11081396), (10, 5540698), (20, 2770349), (71, 780380), (142, 390190), (284, 195095), (355, 156076), (710, 78038), (1420, 39019)]