31915820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1787}}^1$

素因数の和:1862

約数の個数: 48

約数和(自身を含む): 72092160

約数和(自身を除く): 40176340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 1787, 3572, 3574, 4465, 7148, 8930, 8935, 17860, 17870, 33953, 35740, 67906, 83989, 135812, 167978, 169765, 335956, 339530, 419945, 679060, 839890, 1595791, 1679780, 3191582, 6383164, 7978955, 15957910, 31915820]

約数ペア:

[(1, 31915820), (2, 15957910), (4, 7978955), (5, 6383164), (10, 3191582), (19, 1679780), (20, 1595791), (38, 839890), (47, 679060), (76, 419945), (94, 339530), (95, 335956), (188, 169765), (190, 167978), (235, 135812), (380, 83989), (470, 67906), (893, 35740), (940, 33953), (1786, 17870), (1787, 17860), (3572, 8935), (3574, 8930), (4465, 7148)]