19765000

素因数分解:

$2^3\times 5^4\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:152

約数の個数: 80

約数和(自身を含む): 47797200

約数和(自身を除く): 28032200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 59, 67, 100, 118, 125, 134, 200, 236, 250, 268, 295, 335, 472, 500, 536, 590, 625, 670, 1000, 1180, 1250, 1340, 1475, 1675, 2360, 2500, 2680, 2950, 3350, 3953, 5000, 5900, 6700, 7375, 7906, 8375, 11800, 13400, 14750, 15812, 16750, 19765, 29500, 31624, 33500, 36875, 39530, 41875, 59000, 67000, 73750, 79060, 83750, 98825, 147500, 158120, 167500, 197650, 295000, 335000, 395300, 494125, 790600, 988250, 1976500, 2470625, 3953000, 4941250, 9882500, 19765000]

約数ペア:

[(1, 19765000), (2, 9882500), (4, 4941250), (5, 3953000), (8, 2470625), (10, 1976500), (20, 988250), (25, 790600), (40, 494125), (50, 395300), (59, 335000), (67, 295000), (100, 197650), (118, 167500), (125, 158120), (134, 147500), (200, 98825), (236, 83750), (250, 79060), (268, 73750), (295, 67000), (335, 59000), (472, 41875), (500, 39530), (536, 36875), (590, 33500), (625, 31624), (670, 29500), (1000, 19765), (1180, 16750), (1250, 15812), (1340, 14750), (1475, 13400), (1675, 11800), (2360, 8375), (2500, 7906), (2680, 7375), (2950, 6700), (3350, 5900), (3953, 5000)]