12978180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{72101}}^1$

素因数の和:72116

約数の個数: 36

約数和(自身を含む): 39367692

約数和(自身を除く): 26389512

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 72101, 144202, 216303, 288404, 360505, 432606, 648909, 721010, 865212, 1081515, 1297818, 1442020, 2163030, 2595636, 3244545, 4326060, 6489090, 12978180]

約数ペア:

[(1, 12978180), (2, 6489090), (3, 4326060), (4, 3244545), (5, 2595636), (6, 2163030), (9, 1442020), (10, 1297818), (12, 1081515), (15, 865212), (18, 721010), (20, 648909), (30, 432606), (36, 360505), (45, 288404), (60, 216303), (90, 144202), (180, 72101)]