257860000

素因数分解:

$2^5\times 5^4\times {\mathrm{12893}}^1$

素因数の和:12923

約数の個数: 60

約数和(自身を含む): 634423482

約数和(自身を除く): 376563482

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 2000, 2500, 4000, 5000, 10000, 12893, 20000, 25786, 51572, 64465, 103144, 128930, 206288, 257860, 322325, 412576, 515720, 644650, 1031440, 1289300, 1611625, 2062880, 2578600, 3223250, 5157200, 6446500, 8058125, 10314400, 12893000, 16116250, 25786000, 32232500, 51572000, 64465000, 128930000, 257860000]

約数ペア:

[(1, 257860000), (2, 128930000), (4, 64465000), (5, 51572000), (8, 32232500), (10, 25786000), (16, 16116250), (20, 12893000), (25, 10314400), (32, 8058125), (40, 6446500), (50, 5157200), (80, 3223250), (100, 2578600), (125, 2062880), (160, 1611625), (200, 1289300), (250, 1031440), (400, 644650), (500, 515720), (625, 412576), (800, 322325), (1000, 257860), (1250, 206288), (2000, 128930), (2500, 103144), (4000, 64465), (5000, 51572), (10000, 25786), (12893, 20000)]