8209760

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3947}}^1$

素因数の和:3975

約数の個数: 48

約数和(自身を含む): 20892816

約数和(自身を除く): 12683056

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 3947, 7894, 15788, 19735, 31576, 39470, 51311, 63152, 78940, 102622, 126304, 157880, 205244, 256555, 315760, 410488, 513110, 631520, 820976, 1026220, 1641952, 2052440, 4104880, 8209760]

約数ペア:

[(1, 8209760), (2, 4104880), (4, 2052440), (5, 1641952), (8, 1026220), (10, 820976), (13, 631520), (16, 513110), (20, 410488), (26, 315760), (32, 256555), (40, 205244), (52, 157880), (65, 126304), (80, 102622), (104, 78940), (130, 63152), (160, 51311), (208, 39470), (260, 31576), (416, 19735), (520, 15788), (1040, 7894), (2080, 3947)]