257465765

素因数分解:

$5^1\times {\mathrm{17}}^3\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:326

約数の個数: 32

約数和(自身を含む): 336752640

約数和(自身を除く): 79286875

約数列:

[1, 5, 17, 47, 85, 223, 235, 289, 799, 1115, 1445, 3791, 3995, 4913, 10481, 13583, 18955, 24565, 52405, 64447, 67915, 178177, 230911, 322235, 890885, 1095599, 1154555, 3029009, 5477995, 15145045, 51493153, 257465765]

約数ペア:

[(1, 257465765), (5, 51493153), (17, 15145045), (47, 5477995), (85, 3029009), (223, 1154555), (235, 1095599), (289, 890885), (799, 322235), (1115, 230911), (1445, 178177), (3791, 67915), (3995, 64447), (4913, 52405), (10481, 24565), (13583, 18955)]