7903940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{971}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 18615744

約数和(自身を除く): 10711804

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 971, 1628, 1942, 2035, 3884, 4070, 4855, 8140, 9710, 10681, 19420, 21362, 35927, 42724, 53405, 71854, 106810, 143708, 179635, 213620, 359270, 395197, 718540, 790394, 1580788, 1975985, 3951970, 7903940]

約数ペア:

[(1, 7903940), (2, 3951970), (4, 1975985), (5, 1580788), (10, 790394), (11, 718540), (20, 395197), (22, 359270), (37, 213620), (44, 179635), (55, 143708), (74, 106810), (110, 71854), (148, 53405), (185, 42724), (220, 35927), (370, 21362), (407, 19420), (740, 10681), (814, 9710), (971, 8140), (1628, 4855), (1942, 4070), (2035, 3884)]