20740048

素因数分解:

$2^4\times 7^1\times {\mathrm{281}}^1\times {\mathrm{659}}^1$

素因数の和:955

約数の個数: 40

約数和(自身を含む): 46157760

約数和(自身を除く): 25417712

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 281, 562, 659, 1124, 1318, 1967, 2248, 2636, 3934, 4496, 4613, 5272, 7868, 9226, 10544, 15736, 18452, 31472, 36904, 73808, 185179, 370358, 740716, 1296253, 1481432, 2592506, 2962864, 5185012, 10370024, 20740048]

約数ペア:

[(1, 20740048), (2, 10370024), (4, 5185012), (7, 2962864), (8, 2592506), (14, 1481432), (16, 1296253), (28, 740716), (56, 370358), (112, 185179), (281, 73808), (562, 36904), (659, 31472), (1124, 18452), (1318, 15736), (1967, 10544), (2248, 9226), (2636, 7868), (3934, 5272), (4496, 4613)]