678485613

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1\times {\mathrm{1951}}^1$

素因数の和:2245

約数の個数: 32

約数和(自身を含む): 1005233152

約数和(自身を除く): 326747539

約数列:

[1, 3, 13, 37, 39, 111, 241, 481, 723, 1443, 1951, 3133, 5853, 8917, 9399, 25363, 26751, 72187, 76089, 115921, 216561, 347763, 470191, 938431, 1410573, 2815293, 6112483, 17397067, 18337449, 52191201, 226161871, 678485613]

約数ペア:

[(1, 678485613), (3, 226161871), (13, 52191201), (37, 18337449), (39, 17397067), (111, 6112483), (241, 2815293), (481, 1410573), (723, 938431), (1443, 470191), (1951, 347763), (3133, 216561), (5853, 115921), (8917, 76089), (9399, 72187), (25363, 26751)]