81403320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1619}}^1$

素因数の和:2052

約数の個数: 64

約数和(自身を含む): 244944000

約数和(自身を除く): 163540680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 419, 838, 1257, 1619, 1676, 2095, 2514, 3238, 3352, 4190, 4857, 5028, 6285, 6476, 8095, 8380, 9714, 10056, 12570, 12952, 16190, 16760, 19428, 24285, 25140, 32380, 38856, 48570, 50280, 64760, 97140, 194280, 678361, 1356722, 2035083, 2713444, 3391805, 4070166, 5426888, 6783610, 8140332, 10175415, 13567220, 16280664, 20350830, 27134440, 40701660, 81403320]

約数ペア:

[(1, 81403320), (2, 40701660), (3, 27134440), (4, 20350830), (5, 16280664), (6, 13567220), (8, 10175415), (10, 8140332), (12, 6783610), (15, 5426888), (20, 4070166), (24, 3391805), (30, 2713444), (40, 2035083), (60, 1356722), (120, 678361), (419, 194280), (838, 97140), (1257, 64760), (1619, 50280), (1676, 48570), (2095, 38856), (2514, 32380), (3238, 25140), (3352, 24285), (4190, 19428), (4857, 16760), (5028, 16190), (6285, 12952), (6476, 12570), (8095, 10056), (8380, 9714)]