38520280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15787}}^1$

素因数の和:15859

約数の個数: 32

約数和(自身を含む): 88097040

約数和(自身を除く): 49576760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 15787, 31574, 63148, 78935, 126296, 157870, 315740, 631480, 963007, 1926014, 3852028, 4815035, 7704056, 9630070, 19260140, 38520280]

約数ペア:

[(1, 38520280), (2, 19260140), (4, 9630070), (5, 7704056), (8, 4815035), (10, 3852028), (20, 1926014), (40, 963007), (61, 631480), (122, 315740), (244, 157870), (305, 126296), (488, 78935), (610, 63148), (1220, 31574), (2440, 15787)]