2189660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 5171040

約数和(自身を除く): 2981380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 269, 370, 407, 538, 740, 814, 1076, 1345, 1628, 2035, 2690, 2959, 4070, 5380, 5918, 8140, 9953, 11836, 14795, 19906, 29590, 39812, 49765, 59180, 99530, 109483, 199060, 218966, 437932, 547415, 1094830, 2189660]

約数ペア:

[(1, 2189660), (2, 1094830), (4, 547415), (5, 437932), (10, 218966), (11, 199060), (20, 109483), (22, 99530), (37, 59180), (44, 49765), (55, 39812), (74, 29590), (110, 19906), (148, 14795), (185, 11836), (220, 9953), (269, 8140), (370, 5918), (407, 5380), (538, 4070), (740, 2959), (814, 2690), (1076, 2035), (1345, 1628)]