20766248

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 43623360

約数和(自身を除く): 22857112

約数列:

[1, 2, 4, 8, 17, 34, 43, 53, 67, 68, 86, 106, 134, 136, 172, 212, 268, 344, 424, 536, 731, 901, 1139, 1462, 1802, 2278, 2279, 2881, 2924, 3551, 3604, 4556, 4558, 5762, 5848, 7102, 7208, 9112, 9116, 11524, 14204, 18232, 23048, 28408, 38743, 48977, 60367, 77486, 97954, 120734, 152693, 154972, 195908, 241468, 305386, 309944, 391816, 482936, 610772, 1221544, 2595781, 5191562, 10383124, 20766248]

約数ペア:

[(1, 20766248), (2, 10383124), (4, 5191562), (8, 2595781), (17, 1221544), (34, 610772), (43, 482936), (53, 391816), (67, 309944), (68, 305386), (86, 241468), (106, 195908), (134, 154972), (136, 152693), (172, 120734), (212, 97954), (268, 77486), (344, 60367), (424, 48977), (536, 38743), (731, 28408), (901, 23048), (1139, 18232), (1462, 14204), (1802, 11524), (2278, 9116), (2279, 9112), (2881, 7208), (2924, 7102), (3551, 5848), (3604, 5762), (4556, 4558)]