80670400

素因数分解:

$2^6\times 5^2\times {\mathrm{127}}^1\times {\mathrm{397}}^1$

素因数の和:546

約数の個数: 84

約数和(自身を含む): 200566528

約数和(自身を除く): 119896128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 160, 200, 254, 320, 397, 400, 508, 635, 794, 800, 1016, 1270, 1588, 1600, 1985, 2032, 2540, 3175, 3176, 3970, 4064, 5080, 6350, 6352, 7940, 8128, 9925, 10160, 12700, 12704, 15880, 19850, 20320, 25400, 25408, 31760, 39700, 40640, 50419, 50800, 63520, 79400, 100838, 101600, 127040, 158800, 201676, 203200, 252095, 317600, 403352, 504190, 635200, 806704, 1008380, 1260475, 1613408, 2016760, 2520950, 3226816, 4033520, 5041900, 8067040, 10083800, 16134080, 20167600, 40335200, 80670400]

約数ペア:

[(1, 80670400), (2, 40335200), (4, 20167600), (5, 16134080), (8, 10083800), (10, 8067040), (16, 5041900), (20, 4033520), (25, 3226816), (32, 2520950), (40, 2016760), (50, 1613408), (64, 1260475), (80, 1008380), (100, 806704), (127, 635200), (160, 504190), (200, 403352), (254, 317600), (320, 252095), (397, 203200), (400, 201676), (508, 158800), (635, 127040), (794, 101600), (800, 100838), (1016, 79400), (1270, 63520), (1588, 50800), (1600, 50419), (1985, 40640), (2032, 39700), (2540, 31760), (3175, 25408), (3176, 25400), (3970, 20320), (4064, 19850), (5080, 15880), (6350, 12704), (6352, 12700), (7940, 10160), (8128, 9925)]