20628904

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{577}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 40055400

約数和(自身を除く): 19426496

約数列:

[1, 2, 4, 8, 41, 82, 109, 164, 218, 328, 436, 577, 872, 1154, 2308, 4469, 4616, 8938, 17876, 23657, 35752, 47314, 62893, 94628, 125786, 189256, 251572, 503144, 2578613, 5157226, 10314452, 20628904]

約数ペア:

[(1, 20628904), (2, 10314452), (4, 5157226), (8, 2578613), (41, 503144), (82, 251572), (109, 189256), (164, 125786), (218, 94628), (328, 62893), (436, 47314), (577, 35752), (872, 23657), (1154, 17876), (2308, 8938), (4469, 4616)]