254439940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{410387}}^1$

素因数の和:410427

約数の個数: 24

約数和(自身を含む): 551561472

約数和(自身を除く): 297121532

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 410387, 820774, 1641548, 2051935, 4103870, 8207740, 12721997, 25443994, 50887988, 63609985, 127219970, 254439940]

約数ペア:

[(1, 254439940), (2, 127219970), (4, 63609985), (5, 50887988), (10, 25443994), (20, 12721997), (31, 8207740), (62, 4103870), (124, 2051935), (155, 1641548), (310, 820774), (620, 410387)]