20186975988

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{61331}}^1$

素因数の和:61605

約数の個数: 72

約数和(自身を含む): 52508042496

約数和(自身を除く): 32321066508

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 223, 246, 369, 446, 492, 669, 738, 892, 1338, 1476, 2007, 2676, 4014, 8028, 9143, 18286, 27429, 36572, 54858, 61331, 82287, 109716, 122662, 164574, 183993, 245324, 329148, 367986, 551979, 735972, 1103958, 2207916, 2514571, 5029142, 7543713, 10058284, 13676813, 15087426, 22631139, 27353626, 30174852, 41030439, 45262278, 54707252, 82060878, 90524556, 123091317, 164121756, 246182634, 492365268, 560749333, 1121498666, 1682247999, 2242997332, 3364495998, 5046743997, 6728991996, 10093487994, 20186975988]

約数ペア:

[(1, 20186975988), (2, 10093487994), (3, 6728991996), (4, 5046743997), (6, 3364495998), (9, 2242997332), (12, 1682247999), (18, 1121498666), (36, 560749333), (41, 492365268), (82, 246182634), (123, 164121756), (164, 123091317), (223, 90524556), (246, 82060878), (369, 54707252), (446, 45262278), (492, 41030439), (669, 30174852), (738, 27353626), (892, 22631139), (1338, 15087426), (1476, 13676813), (2007, 10058284), (2676, 7543713), (4014, 5029142), (8028, 2514571), (9143, 2207916), (18286, 1103958), (27429, 735972), (36572, 551979), (54858, 367986), (61331, 329148), (82287, 245324), (109716, 183993), (122662, 164574)]