9681980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6287}}^1$

素因数の和:6314

約数の個数: 48

約数和(自身を含む): 25353216

約数和(自身を除く): 15671236

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 6287, 12574, 25148, 31435, 44009, 62870, 69157, 88018, 125740, 138314, 176036, 220045, 276628, 345785, 440090, 484099, 691570, 880180, 968198, 1383140, 1936396, 2420495, 4840990, 9681980]

約数ペア:

[(1, 9681980), (2, 4840990), (4, 2420495), (5, 1936396), (7, 1383140), (10, 968198), (11, 880180), (14, 691570), (20, 484099), (22, 440090), (28, 345785), (35, 276628), (44, 220045), (55, 176036), (70, 138314), (77, 125740), (110, 88018), (140, 69157), (154, 62870), (220, 44009), (308, 31435), (385, 25148), (770, 12574), (1540, 6287)]