17778800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^2\times {\mathrm{263}}^1$

素因数の和:307

約数の個数: 90

約数和(自身を含む): 46427832

約数和(自身を除く): 28649032

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 169, 200, 208, 260, 263, 325, 338, 400, 520, 526, 650, 676, 845, 1040, 1052, 1300, 1315, 1352, 1690, 2104, 2600, 2630, 2704, 3380, 3419, 4208, 4225, 5200, 5260, 6575, 6760, 6838, 8450, 10520, 13150, 13520, 13676, 16900, 17095, 21040, 26300, 27352, 33800, 34190, 44447, 52600, 54704, 67600, 68380, 85475, 88894, 105200, 136760, 170950, 177788, 222235, 273520, 341900, 355576, 444470, 683800, 711152, 888940, 1111175, 1367600, 1777880, 2222350, 3555760, 4444700, 8889400, 17778800]

約数ペア:

[(1, 17778800), (2, 8889400), (4, 4444700), (5, 3555760), (8, 2222350), (10, 1777880), (13, 1367600), (16, 1111175), (20, 888940), (25, 711152), (26, 683800), (40, 444470), (50, 355576), (52, 341900), (65, 273520), (80, 222235), (100, 177788), (104, 170950), (130, 136760), (169, 105200), (200, 88894), (208, 85475), (260, 68380), (263, 67600), (325, 54704), (338, 52600), (400, 44447), (520, 34190), (526, 33800), (650, 27352), (676, 26300), (845, 21040), (1040, 17095), (1052, 16900), (1300, 13676), (1315, 13520), (1352, 13150), (1690, 10520), (2104, 8450), (2600, 6838), (2630, 6760), (2704, 6575), (3380, 5260), (3419, 5200), (4208, 4225)]