2781275

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 4118784

約数和(自身を除く): 1337509

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 691, 805, 3455, 4025, 4837, 15893, 17275, 24185, 79465, 111251, 120925, 397325, 556255, 2781275]

約数ペア:

[(1, 2781275), (5, 556255), (7, 397325), (23, 120925), (25, 111251), (35, 79465), (115, 24185), (161, 17275), (175, 15893), (575, 4837), (691, 4025), (805, 3455)]