18139660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{11779}}^1$

素因数の和:11806

約数の個数: 48

約数和(自身を含む): 47496960

約数和(自身を除く): 29357300

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 11779, 23558, 47116, 58895, 82453, 117790, 129569, 164906, 235580, 259138, 329812, 412265, 518276, 647845, 824530, 906983, 1295690, 1649060, 1813966, 2591380, 3627932, 4534915, 9069830, 18139660]

約数ペア:

[(1, 18139660), (2, 9069830), (4, 4534915), (5, 3627932), (7, 2591380), (10, 1813966), (11, 1649060), (14, 1295690), (20, 906983), (22, 824530), (28, 647845), (35, 518276), (44, 412265), (55, 329812), (70, 259138), (77, 235580), (110, 164906), (140, 129569), (154, 117790), (220, 82453), (308, 58895), (385, 47116), (770, 23558), (1540, 11779)]