19828920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1109}}^1$

素因数の和:1272

約数の個数: 64

約数和(自身を含む): 59940000

約数和(自身を除く): 40111080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 149, 298, 447, 596, 745, 894, 1109, 1192, 1490, 1788, 2218, 2235, 2980, 3327, 3576, 4436, 4470, 5545, 5960, 6654, 8872, 8940, 11090, 13308, 16635, 17880, 22180, 26616, 33270, 44360, 66540, 133080, 165241, 330482, 495723, 660964, 826205, 991446, 1321928, 1652410, 1982892, 2478615, 3304820, 3965784, 4957230, 6609640, 9914460, 19828920]

約数ペア:

[(1, 19828920), (2, 9914460), (3, 6609640), (4, 4957230), (5, 3965784), (6, 3304820), (8, 2478615), (10, 1982892), (12, 1652410), (15, 1321928), (20, 991446), (24, 826205), (30, 660964), (40, 495723), (60, 330482), (120, 165241), (149, 133080), (298, 66540), (447, 44360), (596, 33270), (745, 26616), (894, 22180), (1109, 17880), (1192, 16635), (1490, 13308), (1788, 11090), (2218, 8940), (2235, 8872), (2980, 6654), (3327, 5960), (3576, 5545), (4436, 4470)]