81713560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120167}}^1$

素因数の和:120195

約数の個数: 32

約数和(自身を含む): 194672160

約数和(自身を除く): 112958600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 120167, 240334, 480668, 600835, 961336, 1201670, 2042839, 2403340, 4085678, 4806680, 8171356, 10214195, 16342712, 20428390, 40856780, 81713560]

約数ペア:

[(1, 81713560), (2, 40856780), (4, 20428390), (5, 16342712), (8, 10214195), (10, 8171356), (17, 4806680), (20, 4085678), (34, 2403340), (40, 2042839), (68, 1201670), (85, 961336), (136, 600835), (170, 480668), (340, 240334), (680, 120167)]