20884040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27479}}^1$

素因数の和:27509

約数の個数: 32

約数和(自身を含む): 49464000

約数和(自身を除く): 28579960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27479, 54958, 109916, 137395, 219832, 274790, 522101, 549580, 1044202, 1099160, 2088404, 2610505, 4176808, 5221010, 10442020, 20884040]

約数ペア:

[(1, 20884040), (2, 10442020), (4, 5221010), (5, 4176808), (8, 2610505), (10, 2088404), (19, 1099160), (20, 1044202), (38, 549580), (40, 522101), (76, 274790), (95, 219832), (152, 137395), (190, 109916), (380, 54958), (760, 27479)]