2555440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1879}}^1$

素因数の和:1909

約数の個数: 40

約数和(自身を含む): 6294240

約数和(自身を除く): 3738800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 1879, 3758, 7516, 9395, 15032, 18790, 30064, 31943, 37580, 63886, 75160, 127772, 150320, 159715, 255544, 319430, 511088, 638860, 1277720, 2555440]

約数ペア:

[(1, 2555440), (2, 1277720), (4, 638860), (5, 511088), (8, 319430), (10, 255544), (16, 159715), (17, 150320), (20, 127772), (34, 75160), (40, 63886), (68, 37580), (80, 31943), (85, 30064), (136, 18790), (170, 15032), (272, 9395), (340, 7516), (680, 3758), (1360, 1879)]