2904040

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{919}}^1$

素因数の和:1009

約数の個数: 32

約数和(自身を含む): 6624000

約数和(自身を除く): 3719960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 919, 1580, 1838, 3160, 3676, 4595, 7352, 9190, 18380, 36760, 72601, 145202, 290404, 363005, 580808, 726010, 1452020, 2904040]

約数ペア:

[(1, 2904040), (2, 1452020), (4, 726010), (5, 580808), (8, 363005), (10, 290404), (20, 145202), (40, 72601), (79, 36760), (158, 18380), (316, 9190), (395, 7352), (632, 4595), (790, 3676), (919, 3160), (1580, 1838)]