721838205

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{3083}}^1$

素因数の和:3159

約数の個数: 72

約数和(自身を含む): 1407710304

約数和(自身を除く): 685872099

約数列:

[1, 3, 5, 9, 11, 15, 33, 43, 45, 55, 99, 121, 129, 165, 215, 363, 387, 473, 495, 605, 645, 1089, 1419, 1815, 1935, 2365, 3083, 4257, 5203, 5445, 7095, 9249, 15415, 15609, 21285, 26015, 27747, 33913, 46245, 46827, 78045, 101739, 132569, 138735, 169565, 234135, 305217, 373043, 397707, 508695, 662845, 1119129, 1193121, 1458259, 1526085, 1865215, 1988535, 3357387, 4374777, 5595645, 5965605, 7291295, 13124331, 16040849, 16786935, 21873885, 48122547, 65621655, 80204245, 144367641, 240612735, 721838205]

約数ペア:

[(1, 721838205), (3, 240612735), (5, 144367641), (9, 80204245), (11, 65621655), (15, 48122547), (33, 21873885), (43, 16786935), (45, 16040849), (55, 13124331), (99, 7291295), (121, 5965605), (129, 5595645), (165, 4374777), (215, 3357387), (363, 1988535), (387, 1865215), (473, 1526085), (495, 1458259), (605, 1193121), (645, 1119129), (1089, 662845), (1419, 508695), (1815, 397707), (1935, 373043), (2365, 305217), (3083, 234135), (4257, 169565), (5203, 138735), (5445, 132569), (7095, 101739), (9249, 78045), (15415, 46827), (15609, 46245), (21285, 33913), (26015, 27747)]