80420220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1951}}^1$

素因数の和:2195

約数の個数: 72

約数和(自身を含む): 245132160

約数和(自身を除く): 164711940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 229, 458, 687, 916, 1145, 1374, 1951, 2061, 2290, 2748, 3435, 3902, 4122, 4580, 5853, 6870, 7804, 8244, 9755, 10305, 11706, 13740, 17559, 19510, 20610, 23412, 29265, 35118, 39020, 41220, 58530, 70236, 87795, 117060, 175590, 351180, 446779, 893558, 1340337, 1787116, 2233895, 2680674, 4021011, 4467790, 5361348, 6701685, 8042022, 8935580, 13403370, 16084044, 20105055, 26806740, 40210110, 80420220]

約数ペア:

[(1, 80420220), (2, 40210110), (3, 26806740), (4, 20105055), (5, 16084044), (6, 13403370), (9, 8935580), (10, 8042022), (12, 6701685), (15, 5361348), (18, 4467790), (20, 4021011), (30, 2680674), (36, 2233895), (45, 1787116), (60, 1340337), (90, 893558), (180, 446779), (229, 351180), (458, 175590), (687, 117060), (916, 87795), (1145, 70236), (1374, 58530), (1951, 41220), (2061, 39020), (2290, 35118), (2748, 29265), (3435, 23412), (3902, 20610), (4122, 19510), (4580, 17559), (5853, 13740), (6870, 11706), (7804, 10305), (8244, 9755)]