81966045

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 155105280

約数和(自身を除く): 73139235

約数列:

[1, 3, 5, 7, 15, 21, 35, 59, 101, 105, 131, 177, 295, 303, 393, 413, 505, 655, 707, 885, 917, 1239, 1515, 1965, 2065, 2121, 2751, 3535, 4585, 5959, 6195, 7729, 10605, 13231, 13755, 17877, 23187, 29795, 38645, 39693, 41713, 54103, 66155, 89385, 92617, 115935, 125139, 162309, 198465, 208565, 270515, 277851, 463085, 625695, 780629, 811545, 1389255, 2341887, 3903145, 5464403, 11709435, 16393209, 27322015, 81966045]

約数ペア:

[(1, 81966045), (3, 27322015), (5, 16393209), (7, 11709435), (15, 5464403), (21, 3903145), (35, 2341887), (59, 1389255), (101, 811545), (105, 780629), (131, 625695), (177, 463085), (295, 277851), (303, 270515), (393, 208565), (413, 198465), (505, 162309), (655, 125139), (707, 115935), (885, 92617), (917, 89385), (1239, 66155), (1515, 54103), (1965, 41713), (2065, 39693), (2121, 38645), (2751, 29795), (3535, 23187), (4585, 17877), (5959, 13755), (6195, 13231), (7729, 10605)]