891423680

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:579

約数の個数: 168

約数和(自身を含む): 2493111600

約数和(自身を除く): 1601687920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 139, 140, 160, 196, 224, 245, 278, 280, 320, 392, 409, 448, 490, 556, 560, 695, 784, 818, 973, 980, 1112, 1120, 1390, 1568, 1636, 1946, 1960, 2045, 2224, 2240, 2780, 2863, 3136, 3272, 3892, 3920, 4090, 4448, 4865, 5560, 5726, 6544, 6811, 7784, 7840, 8180, 8896, 9730, 11120, 11452, 13088, 13622, 14315, 15568, 15680, 16360, 19460, 20041, 22240, 22904, 26176, 27244, 28630, 31136, 32720, 34055, 38920, 40082, 44480, 45808, 54488, 56851, 57260, 62272, 65440, 68110, 77840, 80164, 91616, 100205, 108976, 113702, 114520, 130880, 136220, 155680, 160328, 183232, 200410, 217952, 227404, 229040, 272440, 284255, 311360, 320656, 397957, 400820, 435904, 454808, 458080, 544880, 568510, 641312, 795914, 801640, 909616, 916160, 1089760, 1137020, 1282624, 1591828, 1603280, 1819232, 1989785, 2179520, 2274040, 2785699, 3183656, 3206560, 3638464, 3979570, 4548080, 5571398, 6367312, 6413120, 7959140, 9096160, 11142796, 12734624, 13928495, 15918280, 18192320, 22285592, 25469248, 27856990, 31836560, 44571184, 55713980, 63673120, 89142368, 111427960, 127346240, 178284736, 222855920, 445711840, 891423680]

約数ペア:

[(1, 891423680), (2, 445711840), (4, 222855920), (5, 178284736), (7, 127346240), (8, 111427960), (10, 89142368), (14, 63673120), (16, 55713980), (20, 44571184), (28, 31836560), (32, 27856990), (35, 25469248), (40, 22285592), (49, 18192320), (56, 15918280), (64, 13928495), (70, 12734624), (80, 11142796), (98, 9096160), (112, 7959140), (139, 6413120), (140, 6367312), (160, 5571398), (196, 4548080), (224, 3979570), (245, 3638464), (278, 3206560), (280, 3183656), (320, 2785699), (392, 2274040), (409, 2179520), (448, 1989785), (490, 1819232), (556, 1603280), (560, 1591828), (695, 1282624), (784, 1137020), (818, 1089760), (973, 916160), (980, 909616), (1112, 801640), (1120, 795914), (1390, 641312), (1568, 568510), (1636, 544880), (1946, 458080), (1960, 454808), (2045, 435904), (2224, 400820), (2240, 397957), (2780, 320656), (2863, 311360), (3136, 284255), (3272, 272440), (3892, 229040), (3920, 227404), (4090, 217952), (4448, 200410), (4865, 183232), (5560, 160328), (5726, 155680), (6544, 136220), (6811, 130880), (7784, 114520), (7840, 113702), (8180, 108976), (8896, 100205), (9730, 91616), (11120, 80164), (11452, 77840), (13088, 68110), (13622, 65440), (14315, 62272), (15568, 57260), (15680, 56851), (16360, 54488), (19460, 45808), (20041, 44480), (22240, 40082), (22904, 38920), (26176, 34055), (27244, 32720), (28630, 31136)]