81159804

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{659}}^1$

素因数の和:991

約数の個数: 72

約数和(自身を含む): 224864640

約数和(自身を除く): 143704836

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 311, 396, 622, 659, 933, 1244, 1318, 1866, 1977, 2636, 2799, 3421, 3732, 3954, 5598, 5931, 6842, 7249, 7908, 10263, 11196, 11862, 13684, 14498, 20526, 21747, 23724, 28996, 30789, 41052, 43494, 61578, 65241, 86988, 123156, 130482, 204949, 260964, 409898, 614847, 819796, 1229694, 1844541, 2254439, 2459388, 3689082, 4508878, 6763317, 7378164, 9017756, 13526634, 20289951, 27053268, 40579902, 81159804]

約数ペア:

[(1, 81159804), (2, 40579902), (3, 27053268), (4, 20289951), (6, 13526634), (9, 9017756), (11, 7378164), (12, 6763317), (18, 4508878), (22, 3689082), (33, 2459388), (36, 2254439), (44, 1844541), (66, 1229694), (99, 819796), (132, 614847), (198, 409898), (311, 260964), (396, 204949), (622, 130482), (659, 123156), (933, 86988), (1244, 65241), (1318, 61578), (1866, 43494), (1977, 41052), (2636, 30789), (2799, 28996), (3421, 23724), (3732, 21747), (3954, 20526), (5598, 14498), (5931, 13684), (6842, 11862), (7249, 11196), (7908, 10263)]