20504280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{709}}^1$

素因数の和:964

約数の個数: 64

約数和(自身を含む): 61855200

約数和(自身を除く): 41350920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 241, 482, 709, 723, 964, 1205, 1418, 1446, 1928, 2127, 2410, 2836, 2892, 3545, 3615, 4254, 4820, 5672, 5784, 7090, 7230, 8508, 9640, 10635, 14180, 14460, 17016, 21270, 28360, 28920, 42540, 85080, 170869, 341738, 512607, 683476, 854345, 1025214, 1366952, 1708690, 2050428, 2563035, 3417380, 4100856, 5126070, 6834760, 10252140, 20504280]

約数ペア:

[(1, 20504280), (2, 10252140), (3, 6834760), (4, 5126070), (5, 4100856), (6, 3417380), (8, 2563035), (10, 2050428), (12, 1708690), (15, 1366952), (20, 1025214), (24, 854345), (30, 683476), (40, 512607), (60, 341738), (120, 170869), (241, 85080), (482, 42540), (709, 28920), (723, 28360), (964, 21270), (1205, 17016), (1418, 14460), (1446, 14180), (1928, 10635), (2127, 9640), (2410, 8508), (2836, 7230), (2892, 7090), (3545, 5784), (3615, 5672), (4254, 4820)]