261230655

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{523}}^1$

素因数の和:676

約数の個数: 64

約数和(自身を含む): 492576768

約数和(自身を除く): 231346113

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 71, 105, 201, 213, 335, 355, 469, 497, 523, 1005, 1065, 1407, 1491, 1569, 2345, 2485, 2615, 3661, 4757, 7035, 7455, 7845, 10983, 14271, 18305, 23785, 33299, 35041, 37133, 54915, 71355, 99897, 105123, 111399, 166495, 175205, 185665, 245287, 259931, 499485, 525615, 556995, 735861, 779793, 1226435, 1299655, 2487911, 3679305, 3898965, 7463733, 12439555, 17415377, 37318665, 52246131, 87076885, 261230655]

約数ペア:

[(1, 261230655), (3, 87076885), (5, 52246131), (7, 37318665), (15, 17415377), (21, 12439555), (35, 7463733), (67, 3898965), (71, 3679305), (105, 2487911), (201, 1299655), (213, 1226435), (335, 779793), (355, 735861), (469, 556995), (497, 525615), (523, 499485), (1005, 259931), (1065, 245287), (1407, 185665), (1491, 175205), (1569, 166495), (2345, 111399), (2485, 105123), (2615, 99897), (3661, 71355), (4757, 54915), (7035, 37133), (7455, 35041), (7845, 33299), (10983, 23785), (14271, 18305)]