2620420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 6164928

約数和(自身を除く): 3544508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 277, 430, 473, 554, 860, 946, 1108, 1385, 1892, 2365, 2770, 3047, 4730, 5540, 6094, 9460, 11911, 12188, 15235, 23822, 30470, 47644, 59555, 60940, 119110, 131021, 238220, 262042, 524084, 655105, 1310210, 2620420]

約数ペア:

[(1, 2620420), (2, 1310210), (4, 655105), (5, 524084), (10, 262042), (11, 238220), (20, 131021), (22, 119110), (43, 60940), (44, 59555), (55, 47644), (86, 30470), (110, 23822), (172, 15235), (215, 12188), (220, 11911), (277, 9460), (430, 6094), (473, 5540), (554, 4730), (860, 3047), (946, 2770), (1108, 2365), (1385, 1892)]