25506580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{431}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 58786560

約数和(自身を除く): 33279980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 269, 431, 538, 862, 1076, 1345, 1724, 2155, 2690, 2959, 4310, 4741, 5380, 5918, 8620, 9482, 11836, 14795, 18964, 23705, 29590, 47410, 59180, 94820, 115939, 231878, 463756, 579695, 1159390, 1275329, 2318780, 2550658, 5101316, 6376645, 12753290, 25506580]

約数ペア:

[(1, 25506580), (2, 12753290), (4, 6376645), (5, 5101316), (10, 2550658), (11, 2318780), (20, 1275329), (22, 1159390), (44, 579695), (55, 463756), (110, 231878), (220, 115939), (269, 94820), (431, 59180), (538, 47410), (862, 29590), (1076, 23705), (1345, 18964), (1724, 14795), (2155, 11836), (2690, 9482), (2959, 8620), (4310, 5918), (4741, 5380)]