128824240

素因数分解:

$2^4\times 5^1\times {\mathrm{857}}^1\times {\mathrm{1879}}^1$

素因数の和:2749

約数の個数: 40

約数和(自身を含む): 300025440

約数和(自身を除く): 171201200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 857, 1714, 1879, 3428, 3758, 4285, 6856, 7516, 8570, 9395, 13712, 15032, 17140, 18790, 30064, 34280, 37580, 68560, 75160, 150320, 1610303, 3220606, 6441212, 8051515, 12882424, 16103030, 25764848, 32206060, 64412120, 128824240]

約数ペア:

[(1, 128824240), (2, 64412120), (4, 32206060), (5, 25764848), (8, 16103030), (10, 12882424), (16, 8051515), (20, 6441212), (40, 3220606), (80, 1610303), (857, 150320), (1714, 75160), (1879, 68560), (3428, 37580), (3758, 34280), (4285, 30064), (6856, 18790), (7516, 17140), (8570, 15032), (9395, 13712)]