131211210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{839}}^1$

素因数の和:1263

約数の個数: 64

約数和(自身を含む): 340381440

約数和(自身を除く): 209170230

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 401, 802, 839, 1203, 1678, 2005, 2406, 2517, 4010, 4195, 5034, 5213, 6015, 8390, 10426, 10907, 12030, 12585, 15639, 21814, 25170, 26065, 31278, 32721, 52130, 54535, 65442, 78195, 109070, 156390, 163605, 327210, 336439, 672878, 1009317, 1682195, 2018634, 3364390, 4373707, 5046585, 8747414, 10093170, 13121121, 21868535, 26242242, 43737070, 65605605, 131211210]

約数ペア:

[(1, 131211210), (2, 65605605), (3, 43737070), (5, 26242242), (6, 21868535), (10, 13121121), (13, 10093170), (15, 8747414), (26, 5046585), (30, 4373707), (39, 3364390), (65, 2018634), (78, 1682195), (130, 1009317), (195, 672878), (390, 336439), (401, 327210), (802, 163605), (839, 156390), (1203, 109070), (1678, 78195), (2005, 65442), (2406, 54535), (2517, 52130), (4010, 32721), (4195, 31278), (5034, 26065), (5213, 25170), (6015, 21814), (8390, 15639), (10426, 12585), (10907, 12030)]