31838975

素因数分解:

$5^2\times 7^3\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:157

約数の個数: 48

約数和(自身を含む): 47616000

約数和(自身を除く): 15777025

約数列:

[1, 5, 7, 25, 35, 47, 49, 79, 175, 235, 245, 329, 343, 395, 553, 1175, 1225, 1645, 1715, 1975, 2303, 2765, 3713, 3871, 8225, 8575, 11515, 13825, 16121, 18565, 19355, 25991, 27097, 57575, 80605, 92825, 96775, 129955, 135485, 181937, 403025, 649775, 677425, 909685, 1273559, 4548425, 6367795, 31838975]

約数ペア:

[(1, 31838975), (5, 6367795), (7, 4548425), (25, 1273559), (35, 909685), (47, 677425), (49, 649775), (79, 403025), (175, 181937), (235, 135485), (245, 129955), (329, 96775), (343, 92825), (395, 80605), (553, 57575), (1175, 27097), (1225, 25991), (1645, 19355), (1715, 18565), (1975, 16121), (2303, 13825), (2765, 11515), (3713, 8575), (3871, 8225)]