81406116

素因数分解:

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

素因数の和:993

約数の個数: 72

約数和(自身を含む): 225546048

約数和(自身を除く): 144139932

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 311, 396, 622, 661, 933, 1244, 1322, 1866, 1983, 2644, 2799, 3421, 3732, 3966, 5598, 5949, 6842, 7271, 7932, 10263, 11196, 11898, 13684, 14542, 20526, 21813, 23796, 29084, 30789, 41052, 43626, 61578, 65439, 87252, 123156, 130878, 205571, 261756, 411142, 616713, 822284, 1233426, 1850139, 2261281, 2466852, 3700278, 4522562, 6783843, 7400556, 9045124, 13567686, 20351529, 27135372, 40703058, 81406116]

約数ペア:

[(1, 81406116), (2, 40703058), (3, 27135372), (4, 20351529), (6, 13567686), (9, 9045124), (11, 7400556), (12, 6783843), (18, 4522562), (22, 3700278), (33, 2466852), (36, 2261281), (44, 1850139), (66, 1233426), (99, 822284), (132, 616713), (198, 411142), (311, 261756), (396, 205571), (622, 130878), (661, 123156), (933, 87252), (1244, 65439), (1322, 61578), (1866, 43626), (1983, 41052), (2644, 30789), (2799, 29084), (3421, 23796), (3732, 21813), (3966, 20526), (5598, 14542), (5949, 13684), (6842, 11898), (7271, 11196), (7932, 10263)]