6478000

素因数分解:

$2^4\times 5^3\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:143

約数の個数: 80

約数和(自身を含む): 16248960

約数和(自身を除く): 9770960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 79, 80, 82, 100, 125, 158, 164, 200, 205, 250, 316, 328, 395, 400, 410, 500, 632, 656, 790, 820, 1000, 1025, 1264, 1580, 1640, 1975, 2000, 2050, 3160, 3239, 3280, 3950, 4100, 5125, 6320, 6478, 7900, 8200, 9875, 10250, 12956, 15800, 16195, 16400, 19750, 20500, 25912, 31600, 32390, 39500, 41000, 51824, 64780, 79000, 80975, 82000, 129560, 158000, 161950, 259120, 323900, 404875, 647800, 809750, 1295600, 1619500, 3239000, 6478000]

約数ペア:

[(1, 6478000), (2, 3239000), (4, 1619500), (5, 1295600), (8, 809750), (10, 647800), (16, 404875), (20, 323900), (25, 259120), (40, 161950), (41, 158000), (50, 129560), (79, 82000), (80, 80975), (82, 79000), (100, 64780), (125, 51824), (158, 41000), (164, 39500), (200, 32390), (205, 31600), (250, 25912), (316, 20500), (328, 19750), (395, 16400), (400, 16195), (410, 15800), (500, 12956), (632, 10250), (656, 9875), (790, 8200), (820, 7900), (1000, 6478), (1025, 6320), (1264, 5125), (1580, 4100), (1640, 3950), (1975, 3280), (2000, 3239), (2050, 3160)]