20737980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115211}}^1$

素因数の和:115226

約数の個数: 36

約数和(自身を含む): 62905752

約数和(自身を除く): 42167772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115211, 230422, 345633, 460844, 576055, 691266, 1036899, 1152110, 1382532, 1728165, 2073798, 2304220, 3456330, 4147596, 5184495, 6912660, 10368990, 20737980]

約数ペア:

[(1, 20737980), (2, 10368990), (3, 6912660), (4, 5184495), (5, 4147596), (6, 3456330), (9, 2304220), (10, 2073798), (12, 1728165), (15, 1382532), (18, 1152110), (20, 1036899), (30, 691266), (36, 576055), (45, 460844), (60, 345633), (90, 230422), (180, 115211)]