42565880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{541}}^1$

素因数の和:840

約数の個数: 64

約数和(自身を含む): 110047680

約数和(自身を除く): 67481800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281, 541, 562, 1082, 1124, 1405, 1967, 2164, 2248, 2705, 2810, 3787, 3934, 4328, 5410, 5620, 7574, 7868, 9835, 10820, 11240, 15148, 15736, 18935, 19670, 21640, 30296, 37870, 39340, 75740, 78680, 151480, 152021, 304042, 608084, 760105, 1064147, 1216168, 1520210, 2128294, 3040420, 4256588, 5320735, 6080840, 8513176, 10641470, 21282940, 42565880]

約数ペア:

[(1, 42565880), (2, 21282940), (4, 10641470), (5, 8513176), (7, 6080840), (8, 5320735), (10, 4256588), (14, 3040420), (20, 2128294), (28, 1520210), (35, 1216168), (40, 1064147), (56, 760105), (70, 608084), (140, 304042), (280, 152021), (281, 151480), (541, 78680), (562, 75740), (1082, 39340), (1124, 37870), (1405, 30296), (1967, 21640), (2164, 19670), (2248, 18935), (2705, 15736), (2810, 15148), (3787, 11240), (3934, 10820), (4328, 9835), (5410, 7868), (5620, 7574)]