28337600

素因数分解:

$2^6\times 5^2\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:310

約数の個数: 84

約数和(自身を含む): 70866000

約数和(自身を除く): 42528400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 89, 100, 160, 178, 199, 200, 320, 356, 398, 400, 445, 712, 796, 800, 890, 995, 1424, 1592, 1600, 1780, 1990, 2225, 2848, 3184, 3560, 3980, 4450, 4975, 5696, 6368, 7120, 7960, 8900, 9950, 12736, 14240, 15920, 17711, 17800, 19900, 28480, 31840, 35422, 35600, 39800, 63680, 70844, 71200, 79600, 88555, 141688, 142400, 159200, 177110, 283376, 318400, 354220, 442775, 566752, 708440, 885550, 1133504, 1416880, 1771100, 2833760, 3542200, 5667520, 7084400, 14168800, 28337600]

約数ペア:

[(1, 28337600), (2, 14168800), (4, 7084400), (5, 5667520), (8, 3542200), (10, 2833760), (16, 1771100), (20, 1416880), (25, 1133504), (32, 885550), (40, 708440), (50, 566752), (64, 442775), (80, 354220), (89, 318400), (100, 283376), (160, 177110), (178, 159200), (199, 142400), (200, 141688), (320, 88555), (356, 79600), (398, 71200), (400, 70844), (445, 63680), (712, 39800), (796, 35600), (800, 35422), (890, 31840), (995, 28480), (1424, 19900), (1592, 17800), (1600, 17711), (1780, 15920), (1990, 14240), (2225, 12736), (2848, 9950), (3184, 8900), (3560, 7960), (3980, 7120), (4450, 6368), (4975, 5696)]