316779280

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1297}}^1$

素因数の和:1424

約数の個数: 80

約数和(自身を含む): 764843904

約数和(自身を除く): 448064624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 71, 80, 86, 142, 172, 215, 284, 344, 355, 430, 568, 688, 710, 860, 1136, 1297, 1420, 1720, 2594, 2840, 3053, 3440, 5188, 5680, 6106, 6485, 10376, 12212, 12970, 15265, 20752, 24424, 25940, 30530, 48848, 51880, 55771, 61060, 92087, 103760, 111542, 122120, 184174, 223084, 244240, 278855, 368348, 446168, 460435, 557710, 736696, 892336, 920870, 1115420, 1473392, 1841740, 2230840, 3683480, 3959741, 4461680, 7366960, 7919482, 15838964, 19798705, 31677928, 39597410, 63355856, 79194820, 158389640, 316779280]

約数ペア:

[(1, 316779280), (2, 158389640), (4, 79194820), (5, 63355856), (8, 39597410), (10, 31677928), (16, 19798705), (20, 15838964), (40, 7919482), (43, 7366960), (71, 4461680), (80, 3959741), (86, 3683480), (142, 2230840), (172, 1841740), (215, 1473392), (284, 1115420), (344, 920870), (355, 892336), (430, 736696), (568, 557710), (688, 460435), (710, 446168), (860, 368348), (1136, 278855), (1297, 244240), (1420, 223084), (1720, 184174), (2594, 122120), (2840, 111542), (3053, 103760), (3440, 92087), (5188, 61060), (5680, 55771), (6106, 51880), (6485, 48848), (10376, 30530), (12212, 25940), (12970, 24424), (15265, 20752)]