72281209

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{443}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 97864704

約数和(自身を除く): 25583495

約数列:

[1, 7, 11, 13, 77, 91, 143, 163, 443, 1001, 1141, 1793, 2119, 3101, 4873, 5759, 12551, 14833, 23309, 34111, 40313, 63349, 72209, 163163, 443443, 505463, 794299, 938717, 5560093, 6571019, 10325887, 72281209]

約数ペア:

[(1, 72281209), (7, 10325887), (11, 6571019), (13, 5560093), (77, 938717), (91, 794299), (143, 505463), (163, 443443), (443, 163163), (1001, 72209), (1141, 63349), (1793, 40313), (2119, 34111), (3101, 23309), (4873, 14833), (5759, 12551)]