641616195

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{19739}}^1$

素因数の和:19955

約数の個数: 32

約数和(自身を含む): 1125653760

約数和(自身を除く): 484037565

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 197, 591, 985, 2167, 2955, 6501, 10835, 19739, 32505, 59217, 98695, 217129, 296085, 651387, 1085645, 3256935, 3888583, 11665749, 19442915, 42774413, 58328745, 128323239, 213872065, 641616195]

約数ペア:

[(1, 641616195), (3, 213872065), (5, 128323239), (11, 58328745), (15, 42774413), (33, 19442915), (55, 11665749), (165, 3888583), (197, 3256935), (591, 1085645), (985, 651387), (2167, 296085), (2955, 217129), (6501, 98695), (10835, 59217), (19739, 32505)]