78406040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115303}}^1$

素因数の和:115331

約数の個数: 32

約数和(自身を含む): 186792480

約数和(自身を除く): 108386440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 115303, 230606, 461212, 576515, 922424, 1153030, 1960151, 2306060, 3920302, 4612120, 7840604, 9800755, 15681208, 19601510, 39203020, 78406040]

約数ペア:

[(1, 78406040), (2, 39203020), (4, 19601510), (5, 15681208), (8, 9800755), (10, 7840604), (17, 4612120), (20, 3920302), (34, 2306060), (40, 1960151), (68, 1153030), (85, 922424), (136, 576515), (170, 461212), (340, 230606), (680, 115303)]