2459800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{251}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 6679260

約数和(自身を除く): 4219460

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 251, 280, 350, 392, 490, 502, 700, 980, 1004, 1225, 1255, 1400, 1757, 1960, 2008, 2450, 2510, 3514, 4900, 5020, 6275, 7028, 8785, 9800, 10040, 12299, 12550, 14056, 17570, 24598, 25100, 35140, 43925, 49196, 50200, 61495, 70280, 87850, 98392, 122990, 175700, 245980, 307475, 351400, 491960, 614950, 1229900, 2459800]

約数ペア:

[(1, 2459800), (2, 1229900), (4, 614950), (5, 491960), (7, 351400), (8, 307475), (10, 245980), (14, 175700), (20, 122990), (25, 98392), (28, 87850), (35, 70280), (40, 61495), (49, 50200), (50, 49196), (56, 43925), (70, 35140), (98, 25100), (100, 24598), (140, 17570), (175, 14056), (196, 12550), (200, 12299), (245, 10040), (251, 9800), (280, 8785), (350, 7028), (392, 6275), (490, 5020), (502, 4900), (700, 3514), (980, 2510), (1004, 2450), (1225, 2008), (1255, 1960), (1400, 1757)]