678603780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1663}}^1\times {\mathrm{2267}}^1$

素因数の和:3945

約数の個数: 72

約数和(自身を含む): 2060577792

約数和(自身を除く): 1381974012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1663, 2267, 3326, 4534, 4989, 6652, 6801, 8315, 9068, 9978, 11335, 13602, 14967, 16630, 19956, 20403, 22670, 24945, 27204, 29934, 33260, 34005, 40806, 45340, 49890, 59868, 68010, 74835, 81612, 99780, 102015, 136020, 149670, 204030, 299340, 408060, 3770021, 7540042, 11310063, 15080084, 18850105, 22620126, 33930189, 37700210, 45240252, 56550315, 67860378, 75400420, 113100630, 135720756, 169650945, 226201260, 339301890, 678603780]

約数ペア:

[(1, 678603780), (2, 339301890), (3, 226201260), (4, 169650945), (5, 135720756), (6, 113100630), (9, 75400420), (10, 67860378), (12, 56550315), (15, 45240252), (18, 37700210), (20, 33930189), (30, 22620126), (36, 18850105), (45, 15080084), (60, 11310063), (90, 7540042), (180, 3770021), (1663, 408060), (2267, 299340), (3326, 204030), (4534, 149670), (4989, 136020), (6652, 102015), (6801, 99780), (8315, 81612), (9068, 74835), (9978, 68010), (11335, 59868), (13602, 49890), (14967, 45340), (16630, 40806), (19956, 34005), (20403, 33260), (22670, 29934), (24945, 27204)]