90998000

素因数分解:

$2^4\times 5^3\times {\mathrm{173}}^1\times {\mathrm{263}}^1$

素因数の和:459

約数の個数: 80

約数和(自身を含む): 222146496

約数和(自身を除く): 131148496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 173, 200, 250, 263, 346, 400, 500, 526, 692, 865, 1000, 1052, 1315, 1384, 1730, 2000, 2104, 2630, 2768, 3460, 4208, 4325, 5260, 6575, 6920, 8650, 10520, 13150, 13840, 17300, 21040, 21625, 26300, 32875, 34600, 43250, 45499, 52600, 65750, 69200, 86500, 90998, 105200, 131500, 173000, 181996, 227495, 263000, 346000, 363992, 454990, 526000, 727984, 909980, 1137475, 1819960, 2274950, 3639920, 4549900, 5687375, 9099800, 11374750, 18199600, 22749500, 45499000, 90998000]

約数ペア:

[(1, 90998000), (2, 45499000), (4, 22749500), (5, 18199600), (8, 11374750), (10, 9099800), (16, 5687375), (20, 4549900), (25, 3639920), (40, 2274950), (50, 1819960), (80, 1137475), (100, 909980), (125, 727984), (173, 526000), (200, 454990), (250, 363992), (263, 346000), (346, 263000), (400, 227495), (500, 181996), (526, 173000), (692, 131500), (865, 105200), (1000, 90998), (1052, 86500), (1315, 69200), (1384, 65750), (1730, 52600), (2000, 45499), (2104, 43250), (2630, 34600), (2768, 32875), (3460, 26300), (4208, 21625), (4325, 21040), (5260, 17300), (6575, 13840), (6920, 13150), (8650, 10520)]