18764080

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2969}}^1$

素因数の和:3061

約数の個数: 40

約数和(自身を含む): 44193600

約数和(自身を除く): 25429520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 2969, 3160, 5938, 6320, 11876, 14845, 23752, 29690, 47504, 59380, 118760, 234551, 237520, 469102, 938204, 1172755, 1876408, 2345510, 3752816, 4691020, 9382040, 18764080]

約数ペア:

[(1, 18764080), (2, 9382040), (4, 4691020), (5, 3752816), (8, 2345510), (10, 1876408), (16, 1172755), (20, 938204), (40, 469102), (79, 237520), (80, 234551), (158, 118760), (316, 59380), (395, 47504), (632, 29690), (790, 23752), (1264, 14845), (1580, 11876), (2969, 6320), (3160, 5938)]