255707660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{983491}}^1$

素因数の和:983513

約数の個数: 24

約数和(自身を含む): 578293296

約数和(自身を除く): 322585636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 983491, 1966982, 3933964, 4917455, 9834910, 12785383, 19669820, 25570766, 51141532, 63926915, 127853830, 255707660]

約数ペア:

[(1, 255707660), (2, 127853830), (4, 63926915), (5, 51141532), (10, 25570766), (13, 19669820), (20, 12785383), (26, 9834910), (52, 4917455), (65, 3933964), (130, 1966982), (260, 983491)]