27490490

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1249}}^1$

素因数の和:1358

約数の個数: 32

約数和(自身を含む): 51840000

約数和(自身を除く): 24349510

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 355, 710, 1249, 2201, 2498, 4402, 6245, 11005, 12490, 22010, 38719, 77438, 88679, 177358, 193595, 387190, 443395, 886790, 2749049, 5498098, 13745245, 27490490]

約数ペア:

[(1, 27490490), (2, 13745245), (5, 5498098), (10, 2749049), (31, 886790), (62, 443395), (71, 387190), (142, 193595), (155, 177358), (310, 88679), (355, 77438), (710, 38719), (1249, 22010), (2201, 12490), (2498, 11005), (4402, 6245)]