84728840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:475

約数の個数: 96

約数和(自身を含む): 224078400

約数和(自身を除く): 139349560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 139, 140, 196, 245, 278, 280, 311, 392, 490, 556, 622, 695, 973, 980, 1112, 1244, 1390, 1555, 1946, 1960, 2177, 2488, 2780, 3110, 3892, 4354, 4865, 5560, 6220, 6811, 7784, 8708, 9730, 10885, 12440, 13622, 15239, 17416, 19460, 21770, 27244, 30478, 34055, 38920, 43229, 43540, 54488, 60956, 68110, 76195, 86458, 87080, 121912, 136220, 152390, 172916, 216145, 272440, 302603, 304780, 345832, 432290, 605206, 609560, 864580, 1210412, 1513015, 1729160, 2118221, 2420824, 3026030, 4236442, 6052060, 8472884, 10591105, 12104120, 16945768, 21182210, 42364420, 84728840]

約数ペア:

[(1, 84728840), (2, 42364420), (4, 21182210), (5, 16945768), (7, 12104120), (8, 10591105), (10, 8472884), (14, 6052060), (20, 4236442), (28, 3026030), (35, 2420824), (40, 2118221), (49, 1729160), (56, 1513015), (70, 1210412), (98, 864580), (139, 609560), (140, 605206), (196, 432290), (245, 345832), (278, 304780), (280, 302603), (311, 272440), (392, 216145), (490, 172916), (556, 152390), (622, 136220), (695, 121912), (973, 87080), (980, 86458), (1112, 76195), (1244, 68110), (1390, 60956), (1555, 54488), (1946, 43540), (1960, 43229), (2177, 38920), (2488, 34055), (2780, 30478), (3110, 27244), (3892, 21770), (4354, 19460), (4865, 17416), (5560, 15239), (6220, 13622), (6811, 12440), (7784, 10885), (8708, 9730)]