2506660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 5870592

約数和(自身を除く): 3363932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 311, 403, 620, 622, 806, 1244, 1555, 1612, 2015, 3110, 4030, 4043, 6220, 8060, 8086, 9641, 16172, 19282, 20215, 38564, 40430, 48205, 80860, 96410, 125333, 192820, 250666, 501332, 626665, 1253330, 2506660]

約数ペア:

[(1, 2506660), (2, 1253330), (4, 626665), (5, 501332), (10, 250666), (13, 192820), (20, 125333), (26, 96410), (31, 80860), (52, 48205), (62, 40430), (65, 38564), (124, 20215), (130, 19282), (155, 16172), (260, 9641), (310, 8086), (311, 8060), (403, 6220), (620, 4043), (622, 4030), (806, 3110), (1244, 2015), (1555, 1612)]