1997853255

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1543}}^1$

素因数の和:1722

約数の個数: 80

約数和(自身を含む): 3766371840

約数和(自身を除く): 1768518585

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 139, 207, 345, 405, 417, 621, 695, 1035, 1251, 1543, 1863, 2085, 3105, 3197, 3753, 4629, 6255, 7715, 9315, 9591, 11259, 13887, 15985, 18765, 23145, 28773, 35489, 41661, 47955, 56295, 69435, 86319, 106467, 124983, 143865, 177445, 208305, 214477, 258957, 319401, 431595, 532335, 624915, 643431, 958203, 1072385, 1294785, 1597005, 1930293, 2874609, 3217155, 4791015, 4932971, 5790879, 9651465, 14373045, 14798913, 17372637, 24664855, 28954395, 44396739, 73994565, 86863185, 133190217, 221983695, 399570651, 665951085, 1997853255]

約数ペア:

[(1, 1997853255), (3, 665951085), (5, 399570651), (9, 221983695), (15, 133190217), (23, 86863185), (27, 73994565), (45, 44396739), (69, 28954395), (81, 24664855), (115, 17372637), (135, 14798913), (139, 14373045), (207, 9651465), (345, 5790879), (405, 4932971), (417, 4791015), (621, 3217155), (695, 2874609), (1035, 1930293), (1251, 1597005), (1543, 1294785), (1863, 1072385), (2085, 958203), (3105, 643431), (3197, 624915), (3753, 532335), (4629, 431595), (6255, 319401), (7715, 258957), (9315, 214477), (9591, 208305), (11259, 177445), (13887, 143865), (15985, 124983), (18765, 106467), (23145, 86319), (28773, 69435), (35489, 56295), (41661, 47955)]