20879190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1669}}^1$

素因数の和:1821

約数の個数: 48

約数和(自身を含む): 54709200

約数和(自身を除く): 33830010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 139, 278, 417, 695, 834, 1251, 1390, 1669, 2085, 2502, 3338, 4170, 5007, 6255, 8345, 10014, 12510, 15021, 16690, 25035, 30042, 50070, 75105, 150210, 231991, 463982, 695973, 1159955, 1391946, 2087919, 2319910, 3479865, 4175838, 6959730, 10439595, 20879190]

約数ペア:

[(1, 20879190), (2, 10439595), (3, 6959730), (5, 4175838), (6, 3479865), (9, 2319910), (10, 2087919), (15, 1391946), (18, 1159955), (30, 695973), (45, 463982), (90, 231991), (139, 150210), (278, 75105), (417, 50070), (695, 30042), (834, 25035), (1251, 16690), (1390, 15021), (1669, 12510), (2085, 10014), (2502, 8345), (3338, 6255), (4170, 5007)]