259960000

素因数分解:

$2^6\times 5^4\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:196

約数の個数: 140

約数和(自身を含む): 660982168

約数和(自身を除く): 401022168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 67, 80, 97, 100, 125, 134, 160, 194, 200, 250, 268, 320, 335, 388, 400, 485, 500, 536, 625, 670, 776, 800, 970, 1000, 1072, 1250, 1340, 1552, 1600, 1675, 1940, 2000, 2144, 2425, 2500, 2680, 3104, 3350, 3880, 4000, 4288, 4850, 5000, 5360, 6208, 6499, 6700, 7760, 8000, 8375, 9700, 10000, 10720, 12125, 12998, 13400, 15520, 16750, 19400, 20000, 21440, 24250, 25996, 26800, 31040, 32495, 33500, 38800, 40000, 41875, 48500, 51992, 53600, 60625, 64990, 67000, 77600, 83750, 97000, 103984, 107200, 121250, 129980, 134000, 155200, 162475, 167500, 194000, 207968, 242500, 259960, 268000, 324950, 335000, 388000, 415936, 485000, 519920, 536000, 649900, 670000, 776000, 812375, 970000, 1039840, 1299800, 1340000, 1624750, 1940000, 2079680, 2599600, 2680000, 3249500, 3880000, 4061875, 5199200, 6499000, 8123750, 10398400, 12998000, 16247500, 25996000, 32495000, 51992000, 64990000, 129980000, 259960000]

約数ペア:

[(1, 259960000), (2, 129980000), (4, 64990000), (5, 51992000), (8, 32495000), (10, 25996000), (16, 16247500), (20, 12998000), (25, 10398400), (32, 8123750), (40, 6499000), (50, 5199200), (64, 4061875), (67, 3880000), (80, 3249500), (97, 2680000), (100, 2599600), (125, 2079680), (134, 1940000), (160, 1624750), (194, 1340000), (200, 1299800), (250, 1039840), (268, 970000), (320, 812375), (335, 776000), (388, 670000), (400, 649900), (485, 536000), (500, 519920), (536, 485000), (625, 415936), (670, 388000), (776, 335000), (800, 324950), (970, 268000), (1000, 259960), (1072, 242500), (1250, 207968), (1340, 194000), (1552, 167500), (1600, 162475), (1675, 155200), (1940, 134000), (2000, 129980), (2144, 121250), (2425, 107200), (2500, 103984), (2680, 97000), (3104, 83750), (3350, 77600), (3880, 67000), (4000, 64990), (4288, 60625), (4850, 53600), (5000, 51992), (5360, 48500), (6208, 41875), (6499, 40000), (6700, 38800), (7760, 33500), (8000, 32495), (8375, 31040), (9700, 26800), (10000, 25996), (10720, 24250), (12125, 21440), (12998, 20000), (13400, 19400), (15520, 16750)]