640908801

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{27253}}^1$

素因数の和:27342

約数の個数: 32

約数和(自身を含む): 1037832320

約数和(自身を除く): 396923519

約数列:

[1, 3, 9, 13, 27, 39, 67, 117, 201, 351, 603, 871, 1809, 2613, 7839, 23517, 27253, 81759, 245277, 354289, 735831, 1062867, 1825951, 3188601, 5477853, 9565803, 16433559, 23737363, 49300677, 71212089, 213636267, 640908801]

約数ペア:

[(1, 640908801), (3, 213636267), (9, 71212089), (13, 49300677), (27, 23737363), (39, 16433559), (67, 9565803), (117, 5477853), (201, 3188601), (351, 1825951), (603, 1062867), (871, 735831), (1809, 354289), (2613, 245277), (7839, 81759), (23517, 27253)]