30964000

素因数分解:

$2^5\times 5^3\times {\mathrm{7741}}^1$

素因数の和:7766

約数の個数: 48

約数和(自身を含む): 76088376

約数和(自身を除く): 45124376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 7741, 15482, 30964, 38705, 61928, 77410, 123856, 154820, 193525, 247712, 309640, 387050, 619280, 774100, 967625, 1238560, 1548200, 1935250, 3096400, 3870500, 6192800, 7741000, 15482000, 30964000]

約数ペア:

[(1, 30964000), (2, 15482000), (4, 7741000), (5, 6192800), (8, 3870500), (10, 3096400), (16, 1935250), (20, 1548200), (25, 1238560), (32, 967625), (40, 774100), (50, 619280), (80, 387050), (100, 309640), (125, 247712), (160, 193525), (200, 154820), (250, 123856), (400, 77410), (500, 61928), (800, 38705), (1000, 30964), (2000, 15482), (4000, 7741)]