278320840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{21149}}^1$

素因数の和:21214

約数の個数: 64

約数和(自身を含む): 730944000

約数和(自身を除く): 452623160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 70, 94, 140, 188, 235, 280, 329, 376, 470, 658, 940, 1316, 1645, 1880, 2632, 3290, 6580, 13160, 21149, 42298, 84596, 105745, 148043, 169192, 211490, 296086, 422980, 592172, 740215, 845960, 994003, 1184344, 1480430, 1988006, 2960860, 3976012, 4970015, 5921720, 6958021, 7952024, 9940030, 13916042, 19880060, 27832084, 34790105, 39760120, 55664168, 69580210, 139160420, 278320840]

約数ペア:

[(1, 278320840), (2, 139160420), (4, 69580210), (5, 55664168), (7, 39760120), (8, 34790105), (10, 27832084), (14, 19880060), (20, 13916042), (28, 9940030), (35, 7952024), (40, 6958021), (47, 5921720), (56, 4970015), (70, 3976012), (94, 2960860), (140, 1988006), (188, 1480430), (235, 1184344), (280, 994003), (329, 845960), (376, 740215), (470, 592172), (658, 422980), (940, 296086), (1316, 211490), (1645, 169192), (1880, 148043), (2632, 105745), (3290, 84596), (6580, 42298), (13160, 21149)]