164280440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{919}}^1$

素因数の和:1080

約数の個数: 64

約数和(自身を含む): 382536000

約数和(自身を除く): 218255560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 109, 164, 205, 218, 328, 410, 436, 545, 820, 872, 919, 1090, 1640, 1838, 2180, 3676, 4360, 4469, 4595, 7352, 8938, 9190, 17876, 18380, 22345, 35752, 36760, 37679, 44690, 75358, 89380, 100171, 150716, 178760, 188395, 200342, 301432, 376790, 400684, 500855, 753580, 801368, 1001710, 1507160, 2003420, 4006840, 4107011, 8214022, 16428044, 20535055, 32856088, 41070110, 82140220, 164280440]

約数ペア:

[(1, 164280440), (2, 82140220), (4, 41070110), (5, 32856088), (8, 20535055), (10, 16428044), (20, 8214022), (40, 4107011), (41, 4006840), (82, 2003420), (109, 1507160), (164, 1001710), (205, 801368), (218, 753580), (328, 500855), (410, 400684), (436, 376790), (545, 301432), (820, 200342), (872, 188395), (919, 178760), (1090, 150716), (1640, 100171), (1838, 89380), (2180, 75358), (3676, 44690), (4360, 37679), (4469, 36760), (4595, 35752), (7352, 22345), (8938, 18380), (9190, 17876)]