2140820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 5056128

約数和(自身を除く): 2915308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 263, 370, 407, 526, 740, 814, 1052, 1315, 1628, 2035, 2630, 2893, 4070, 5260, 5786, 8140, 9731, 11572, 14465, 19462, 28930, 38924, 48655, 57860, 97310, 107041, 194620, 214082, 428164, 535205, 1070410, 2140820]

約数ペア:

[(1, 2140820), (2, 1070410), (4, 535205), (5, 428164), (10, 214082), (11, 194620), (20, 107041), (22, 97310), (37, 57860), (44, 48655), (55, 38924), (74, 28930), (110, 19462), (148, 14465), (185, 11572), (220, 9731), (263, 8140), (370, 5786), (407, 5260), (526, 4070), (740, 2893), (814, 2630), (1052, 2035), (1315, 1628)]