90451240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{661}}^1$

素因数の和:994

約数の個数: 64

約数和(自身を含む): 223067520

約数和(自身を除く): 132616280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 311, 440, 622, 661, 1244, 1322, 1555, 2488, 2644, 3110, 3305, 3421, 5288, 6220, 6610, 6842, 7271, 12440, 13220, 13684, 14542, 17105, 26440, 27368, 29084, 34210, 36355, 58168, 68420, 72710, 136840, 145420, 205571, 290840, 411142, 822284, 1027855, 1644568, 2055710, 2261281, 4111420, 4522562, 8222840, 9045124, 11306405, 18090248, 22612810, 45225620, 90451240]

約数ペア:

[(1, 90451240), (2, 45225620), (4, 22612810), (5, 18090248), (8, 11306405), (10, 9045124), (11, 8222840), (20, 4522562), (22, 4111420), (40, 2261281), (44, 2055710), (55, 1644568), (88, 1027855), (110, 822284), (220, 411142), (311, 290840), (440, 205571), (622, 145420), (661, 136840), (1244, 72710), (1322, 68420), (1555, 58168), (2488, 36355), (2644, 34210), (3110, 29084), (3305, 27368), (3421, 26440), (5288, 17105), (6220, 14542), (6610, 13684), (6842, 13220), (7271, 12440)]