7647540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{647}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 21555072

約数和(自身を除く): 13907532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 197, 394, 591, 647, 788, 985, 1182, 1294, 1941, 1970, 2364, 2588, 2955, 3235, 3882, 3940, 5910, 6470, 7764, 9705, 11820, 12940, 19410, 38820, 127459, 254918, 382377, 509836, 637295, 764754, 1274590, 1529508, 1911885, 2549180, 3823770, 7647540]

約数ペア:

[(1, 7647540), (2, 3823770), (3, 2549180), (4, 1911885), (5, 1529508), (6, 1274590), (10, 764754), (12, 637295), (15, 509836), (20, 382377), (30, 254918), (60, 127459), (197, 38820), (394, 19410), (591, 12940), (647, 11820), (788, 9705), (985, 7764), (1182, 6470), (1294, 5910), (1941, 3940), (1970, 3882), (2364, 3235), (2588, 2955)]