3091340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 7547904

約数和(自身を除く): 4456564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 311, 355, 497, 622, 710, 994, 1244, 1420, 1555, 1988, 2177, 2485, 3110, 4354, 4970, 6220, 8708, 9940, 10885, 21770, 22081, 43540, 44162, 88324, 110405, 154567, 220810, 309134, 441620, 618268, 772835, 1545670, 3091340]

約数ペア:

[(1, 3091340), (2, 1545670), (4, 772835), (5, 618268), (7, 441620), (10, 309134), (14, 220810), (20, 154567), (28, 110405), (35, 88324), (70, 44162), (71, 43540), (140, 22081), (142, 21770), (284, 10885), (311, 9940), (355, 8708), (497, 6220), (622, 4970), (710, 4354), (994, 3110), (1244, 2485), (1420, 2177), (1555, 1988)]