78368840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{643}}^1$

素因数の和:942

約数の個数: 64

約数和(自身を含む): 193354560

約数和(自身を除く): 114985720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 277, 440, 554, 643, 1108, 1286, 1385, 2216, 2572, 2770, 3047, 3215, 5144, 5540, 6094, 6430, 7073, 11080, 12188, 12860, 14146, 15235, 24376, 25720, 28292, 30470, 35365, 56584, 60940, 70730, 121880, 141460, 178111, 282920, 356222, 712444, 890555, 1424888, 1781110, 1959221, 3562220, 3918442, 7124440, 7836884, 9796105, 15673768, 19592210, 39184420, 78368840]

約数ペア:

[(1, 78368840), (2, 39184420), (4, 19592210), (5, 15673768), (8, 9796105), (10, 7836884), (11, 7124440), (20, 3918442), (22, 3562220), (40, 1959221), (44, 1781110), (55, 1424888), (88, 890555), (110, 712444), (220, 356222), (277, 282920), (440, 178111), (554, 141460), (643, 121880), (1108, 70730), (1286, 60940), (1385, 56584), (2216, 35365), (2572, 30470), (2770, 28292), (3047, 25720), (3215, 24376), (5144, 15235), (5540, 14146), (6094, 12860), (6430, 12188), (7073, 11080)]