681485600

素因数分解:

$2^5\times 5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:403

約数の個数: 144

約数和(自身を含む): 1732389120

約数和(自身を除く): 1050903520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 79, 80, 82, 100, 158, 160, 164, 200, 205, 263, 316, 328, 395, 400, 410, 526, 632, 656, 790, 800, 820, 1025, 1052, 1264, 1312, 1315, 1580, 1640, 1975, 2050, 2104, 2528, 2630, 3160, 3239, 3280, 3950, 4100, 4208, 5260, 6320, 6478, 6560, 6575, 7900, 8200, 8416, 10520, 10783, 12640, 12956, 13150, 15800, 16195, 16400, 20777, 21040, 21566, 25912, 26300, 31600, 32390, 32800, 41554, 42080, 43132, 51824, 52600, 53915, 63200, 64780, 80975, 83108, 86264, 103648, 103885, 105200, 107830, 129560, 161950, 166216, 172528, 207770, 210400, 215660, 259120, 269575, 323900, 332432, 345056, 415540, 431320, 518240, 519425, 539150, 647800, 664864, 831080, 851857, 862640, 1038850, 1078300, 1295600, 1662160, 1703714, 1725280, 2077700, 2156600, 2591200, 3324320, 3407428, 4155400, 4259285, 4313200, 6814856, 8310800, 8518570, 8626400, 13629712, 16621600, 17037140, 21296425, 27259424, 34074280, 42592850, 68148560, 85185700, 136297120, 170371400, 340742800, 681485600]

約数ペア:

[(1, 681485600), (2, 340742800), (4, 170371400), (5, 136297120), (8, 85185700), (10, 68148560), (16, 42592850), (20, 34074280), (25, 27259424), (32, 21296425), (40, 17037140), (41, 16621600), (50, 13629712), (79, 8626400), (80, 8518570), (82, 8310800), (100, 6814856), (158, 4313200), (160, 4259285), (164, 4155400), (200, 3407428), (205, 3324320), (263, 2591200), (316, 2156600), (328, 2077700), (395, 1725280), (400, 1703714), (410, 1662160), (526, 1295600), (632, 1078300), (656, 1038850), (790, 862640), (800, 851857), (820, 831080), (1025, 664864), (1052, 647800), (1264, 539150), (1312, 519425), (1315, 518240), (1580, 431320), (1640, 415540), (1975, 345056), (2050, 332432), (2104, 323900), (2528, 269575), (2630, 259120), (3160, 215660), (3239, 210400), (3280, 207770), (3950, 172528), (4100, 166216), (4208, 161950), (5260, 129560), (6320, 107830), (6478, 105200), (6560, 103885), (6575, 103648), (7900, 86264), (8200, 83108), (8416, 80975), (10520, 64780), (10783, 63200), (12640, 53915), (12956, 52600), (13150, 51824), (15800, 43132), (16195, 42080), (16400, 41554), (20777, 32800), (21040, 32390), (21566, 31600), (25912, 26300)]