8818040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:445

約数の個数: 96

約数和(自身を含む): 25239600

約数和(自身を除く): 16421560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 140, 154, 196, 220, 245, 280, 308, 385, 392, 409, 440, 490, 539, 616, 770, 818, 980, 1078, 1540, 1636, 1960, 2045, 2156, 2695, 2863, 3080, 3272, 4090, 4312, 4499, 5390, 5726, 8180, 8998, 10780, 11452, 14315, 16360, 17996, 20041, 21560, 22495, 22904, 28630, 31493, 35992, 40082, 44990, 57260, 62986, 80164, 89980, 100205, 114520, 125972, 157465, 160328, 179960, 200410, 220451, 251944, 314930, 400820, 440902, 629860, 801640, 881804, 1102255, 1259720, 1763608, 2204510, 4409020, 8818040]

約数ペア:

[(1, 8818040), (2, 4409020), (4, 2204510), (5, 1763608), (7, 1259720), (8, 1102255), (10, 881804), (11, 801640), (14, 629860), (20, 440902), (22, 400820), (28, 314930), (35, 251944), (40, 220451), (44, 200410), (49, 179960), (55, 160328), (56, 157465), (70, 125972), (77, 114520), (88, 100205), (98, 89980), (110, 80164), (140, 62986), (154, 57260), (196, 44990), (220, 40082), (245, 35992), (280, 31493), (308, 28630), (385, 22904), (392, 22495), (409, 21560), (440, 20041), (490, 17996), (539, 16360), (616, 14315), (770, 11452), (818, 10780), (980, 8998), (1078, 8180), (1540, 5726), (1636, 5390), (1960, 4499), (2045, 4312), (2156, 4090), (2695, 3272), (2863, 3080)]