131232904

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:578

約数の個数: 64

約数和(自身を含む): 278784000

約数和(自身を除く): 147551096

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 79, 86, 88, 158, 172, 316, 344, 439, 473, 632, 869, 878, 946, 1738, 1756, 1892, 3397, 3476, 3512, 3784, 4829, 6794, 6952, 9658, 13588, 18877, 19316, 27176, 34681, 37367, 37754, 38632, 69362, 74734, 75508, 138724, 149468, 151016, 207647, 277448, 298936, 381491, 415294, 762982, 830588, 1491283, 1525964, 1661176, 2982566, 3051928, 5965132, 11930264, 16404113, 32808226, 65616452, 131232904]

約数ペア:

[(1, 131232904), (2, 65616452), (4, 32808226), (8, 16404113), (11, 11930264), (22, 5965132), (43, 3051928), (44, 2982566), (79, 1661176), (86, 1525964), (88, 1491283), (158, 830588), (172, 762982), (316, 415294), (344, 381491), (439, 298936), (473, 277448), (632, 207647), (869, 151016), (878, 149468), (946, 138724), (1738, 75508), (1756, 74734), (1892, 69362), (3397, 38632), (3476, 37754), (3512, 37367), (3784, 34681), (4829, 27176), (6794, 19316), (6952, 18877), (9658, 13588)]