81738840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{751}}^1\times {\mathrm{907}}^1$

素因数の和:1672

約数の個数: 64

約数和(自身を含む): 245813760

約数和(自身を除く): 164074920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 751, 907, 1502, 1814, 2253, 2721, 3004, 3628, 3755, 4506, 4535, 5442, 6008, 7256, 7510, 9012, 9070, 10884, 11265, 13605, 15020, 18024, 18140, 21768, 22530, 27210, 30040, 36280, 45060, 54420, 90120, 108840, 681157, 1362314, 2043471, 2724628, 3405785, 4086942, 5449256, 6811570, 8173884, 10217355, 13623140, 16347768, 20434710, 27246280, 40869420, 81738840]

約数ペア:

[(1, 81738840), (2, 40869420), (3, 27246280), (4, 20434710), (5, 16347768), (6, 13623140), (8, 10217355), (10, 8173884), (12, 6811570), (15, 5449256), (20, 4086942), (24, 3405785), (30, 2724628), (40, 2043471), (60, 1362314), (120, 681157), (751, 108840), (907, 90120), (1502, 54420), (1814, 45060), (2253, 36280), (2721, 30040), (3004, 27210), (3628, 22530), (3755, 21768), (4506, 18140), (4535, 18024), (5442, 15020), (6008, 13605), (7256, 11265), (7510, 10884), (9012, 9070)]