642586

素因数分解:

$2^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:178

約数の個数: 24

約数和(自身を含む): 1149120

約数和(自身を除く): 506534

約数列:

[1, 2, 7, 14, 49, 79, 83, 98, 158, 166, 553, 581, 1106, 1162, 3871, 4067, 6557, 7742, 8134, 13114, 45899, 91798, 321293, 642586]

約数ペア:

[(1, 642586), (2, 321293), (7, 91798), (14, 45899), (49, 13114), (79, 8134), (83, 7742), (98, 6557), (158, 4067), (166, 3871), (553, 1162), (581, 1106)]