20180778081

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{431}}^1$

素因数の和:782

約数の個数: 64

約数和(自身を含む): 29543325696

約数和(自身を除く): 9362547615

約数列:

[1, 3, 17, 51, 67, 71, 193, 201, 213, 431, 579, 1139, 1207, 1293, 3281, 3417, 3621, 4757, 7327, 9843, 12931, 13703, 14271, 21981, 28877, 30601, 38793, 41109, 80869, 83183, 86631, 91803, 219827, 232951, 242607, 249549, 490909, 520217, 659481, 698853, 918101, 1414111, 1472727, 1560651, 2050267, 2754303, 4242333, 5573261, 5905993, 6150801, 15607717, 16719783, 17717979, 34854539, 46823151, 94745437, 100401881, 104563617, 284236311, 301205643, 395701531, 1187104593, 6726926027, 20180778081]

約数ペア:

[(1, 20180778081), (3, 6726926027), (17, 1187104593), (51, 395701531), (67, 301205643), (71, 284236311), (193, 104563617), (201, 100401881), (213, 94745437), (431, 46823151), (579, 34854539), (1139, 17717979), (1207, 16719783), (1293, 15607717), (3281, 6150801), (3417, 5905993), (3621, 5573261), (4757, 4242333), (7327, 2754303), (9843, 2050267), (12931, 1560651), (13703, 1472727), (14271, 1414111), (21981, 918101), (28877, 698853), (30601, 659481), (38793, 520217), (41109, 490909), (80869, 249549), (83183, 242607), (86631, 232951), (91803, 219827)]