8568280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 22394880

約数和(自身を除く): 13826600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 431, 497, 568, 710, 862, 994, 1420, 1724, 1988, 2155, 2485, 2840, 3017, 3448, 3976, 4310, 4970, 6034, 8620, 9940, 12068, 15085, 17240, 19880, 24136, 30170, 30601, 60340, 61202, 120680, 122404, 153005, 214207, 244808, 306010, 428414, 612020, 856828, 1071035, 1224040, 1713656, 2142070, 4284140, 8568280]

約数ペア:

[(1, 8568280), (2, 4284140), (4, 2142070), (5, 1713656), (7, 1224040), (8, 1071035), (10, 856828), (14, 612020), (20, 428414), (28, 306010), (35, 244808), (40, 214207), (56, 153005), (70, 122404), (71, 120680), (140, 61202), (142, 60340), (280, 30601), (284, 30170), (355, 24136), (431, 19880), (497, 17240), (568, 15085), (710, 12068), (862, 9940), (994, 8620), (1420, 6034), (1724, 4970), (1988, 4310), (2155, 3976), (2485, 3448), (2840, 3017)]