18201840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{509}}^1$

素因数の和:674

約数の個数: 80

約数和(自身を含む): 56916000

約数和(自身を除く): 38714160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 149, 240, 298, 447, 509, 596, 745, 894, 1018, 1192, 1490, 1527, 1788, 2036, 2235, 2384, 2545, 2980, 3054, 3576, 4072, 4470, 5090, 5960, 6108, 7152, 7635, 8144, 8940, 10180, 11920, 12216, 15270, 17880, 20360, 24432, 30540, 35760, 40720, 61080, 75841, 122160, 151682, 227523, 303364, 379205, 455046, 606728, 758410, 910092, 1137615, 1213456, 1516820, 1820184, 2275230, 3033640, 3640368, 4550460, 6067280, 9100920, 18201840]

約数ペア:

[(1, 18201840), (2, 9100920), (3, 6067280), (4, 4550460), (5, 3640368), (6, 3033640), (8, 2275230), (10, 1820184), (12, 1516820), (15, 1213456), (16, 1137615), (20, 910092), (24, 758410), (30, 606728), (40, 455046), (48, 379205), (60, 303364), (80, 227523), (120, 151682), (149, 122160), (240, 75841), (298, 61080), (447, 40720), (509, 35760), (596, 30540), (745, 24432), (894, 20360), (1018, 17880), (1192, 15270), (1490, 12216), (1527, 11920), (1788, 10180), (2036, 8940), (2235, 8144), (2384, 7635), (2545, 7152), (2980, 6108), (3054, 5960), (3576, 5090), (4072, 4470)]