208016865

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^2\times {\mathrm{131}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 421147584

約数和(自身を除く): 213130719

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 131, 213, 315, 355, 393, 497, 639, 655, 917, 1065, 1179, 1491, 1965, 2485, 2751, 3195, 4473, 4585, 5041, 5895, 7455, 8253, 9301, 13755, 15123, 22365, 25205, 27903, 35287, 41265, 45369, 46505, 65107, 75615, 83709, 105861, 139515, 176435, 195321, 226845, 317583, 325535, 418545, 529305, 585963, 660371, 976605, 1587915, 1981113, 2929815, 3301855, 4622597, 5943339, 9905565, 13867791, 23112985, 29716695, 41603373, 69338955, 208016865]

約数ペア:

[(1, 208016865), (3, 69338955), (5, 41603373), (7, 29716695), (9, 23112985), (15, 13867791), (21, 9905565), (35, 5943339), (45, 4622597), (63, 3301855), (71, 2929815), (105, 1981113), (131, 1587915), (213, 976605), (315, 660371), (355, 585963), (393, 529305), (497, 418545), (639, 325535), (655, 317583), (917, 226845), (1065, 195321), (1179, 176435), (1491, 139515), (1965, 105861), (2485, 83709), (2751, 75615), (3195, 65107), (4473, 46505), (4585, 45369), (5041, 41265), (5895, 35287), (7455, 27903), (8253, 25205), (9301, 22365), (13755, 15123)]