31570280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{823}}^1$

素因数の和:978

約数の個数: 64

約数和(自身を含む): 81872640

約数和(自身を除く): 50302360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 137, 140, 274, 280, 548, 685, 823, 959, 1096, 1370, 1646, 1918, 2740, 3292, 3836, 4115, 4795, 5480, 5761, 6584, 7672, 8230, 9590, 11522, 16460, 19180, 23044, 28805, 32920, 38360, 46088, 57610, 112751, 115220, 225502, 230440, 451004, 563755, 789257, 902008, 1127510, 1578514, 2255020, 3157028, 3946285, 4510040, 6314056, 7892570, 15785140, 31570280]

約数ペア:

[(1, 31570280), (2, 15785140), (4, 7892570), (5, 6314056), (7, 4510040), (8, 3946285), (10, 3157028), (14, 2255020), (20, 1578514), (28, 1127510), (35, 902008), (40, 789257), (56, 563755), (70, 451004), (137, 230440), (140, 225502), (274, 115220), (280, 112751), (548, 57610), (685, 46088), (823, 38360), (959, 32920), (1096, 28805), (1370, 23044), (1646, 19180), (1918, 16460), (2740, 11522), (3292, 9590), (3836, 8230), (4115, 7672), (4795, 6584), (5480, 5761)]