128262400

素因数分解:

$2^8\times 5^2\times 7^2\times {\mathrm{409}}^1$

素因数の和:449

約数の個数: 162

約数和(自身を含む): 370204170

約数和(自身を除く): 241941770

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 49, 50, 56, 64, 70, 80, 98, 100, 112, 128, 140, 160, 175, 196, 200, 224, 245, 256, 280, 320, 350, 392, 400, 409, 448, 490, 560, 640, 700, 784, 800, 818, 896, 980, 1120, 1225, 1280, 1400, 1568, 1600, 1636, 1792, 1960, 2045, 2240, 2450, 2800, 2863, 3136, 3200, 3272, 3920, 4090, 4480, 4900, 5600, 5726, 6272, 6400, 6544, 7840, 8180, 8960, 9800, 10225, 11200, 11452, 12544, 13088, 14315, 15680, 16360, 19600, 20041, 20450, 22400, 22904, 26176, 28630, 31360, 32720, 39200, 40082, 40900, 44800, 45808, 52352, 57260, 62720, 65440, 71575, 78400, 80164, 81800, 91616, 100205, 104704, 114520, 130880, 143150, 156800, 160328, 163600, 183232, 200410, 229040, 261760, 286300, 313600, 320656, 327200, 366464, 400820, 458080, 501025, 523520, 572600, 641312, 654400, 732928, 801640, 916160, 1002050, 1145200, 1282624, 1308800, 1603280, 1832320, 2004100, 2290400, 2565248, 2617600, 3206560, 3664640, 4008200, 4580800, 5130496, 6413120, 8016400, 9161600, 12826240, 16032800, 18323200, 25652480, 32065600, 64131200, 128262400]

約数ペア:

[(1, 128262400), (2, 64131200), (4, 32065600), (5, 25652480), (7, 18323200), (8, 16032800), (10, 12826240), (14, 9161600), (16, 8016400), (20, 6413120), (25, 5130496), (28, 4580800), (32, 4008200), (35, 3664640), (40, 3206560), (49, 2617600), (50, 2565248), (56, 2290400), (64, 2004100), (70, 1832320), (80, 1603280), (98, 1308800), (100, 1282624), (112, 1145200), (128, 1002050), (140, 916160), (160, 801640), (175, 732928), (196, 654400), (200, 641312), (224, 572600), (245, 523520), (256, 501025), (280, 458080), (320, 400820), (350, 366464), (392, 327200), (400, 320656), (409, 313600), (448, 286300), (490, 261760), (560, 229040), (640, 200410), (700, 183232), (784, 163600), (800, 160328), (818, 156800), (896, 143150), (980, 130880), (1120, 114520), (1225, 104704), (1280, 100205), (1400, 91616), (1568, 81800), (1600, 80164), (1636, 78400), (1792, 71575), (1960, 65440), (2045, 62720), (2240, 57260), (2450, 52352), (2800, 45808), (2863, 44800), (3136, 40900), (3200, 40082), (3272, 39200), (3920, 32720), (4090, 31360), (4480, 28630), (4900, 26176), (5600, 22904), (5726, 22400), (6272, 20450), (6400, 20041), (6544, 19600), (7840, 16360), (8180, 15680), (8960, 14315), (9800, 13088), (10225, 12544), (11200, 11452)]