1489406980

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{499801}}^1$

素因数の和:499959

約数の個数: 24

約数和(自身を含む): 3148752600

約数和(自身を除く): 1659345620

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 499801, 999602, 1999204, 2499005, 4998010, 9996020, 74470349, 148940698, 297881396, 372351745, 744703490, 1489406980]

約数ペア:

[(1, 1489406980), (2, 744703490), (4, 372351745), (5, 297881396), (10, 148940698), (20, 74470349), (149, 9996020), (298, 4998010), (596, 2499005), (745, 1999204), (1490, 999602), (2980, 499801)]