256220895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{34369}}^1$

素因数の和:34455

約数の個数: 32

約数和(自身を含む): 475130880

約数和(自身を除く): 218909985

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 7455, 34369, 103107, 171845, 240583, 515535, 721749, 1202915, 2440199, 3608745, 7320597, 12200995, 17081393, 36602985, 51244179, 85406965, 256220895]

約数ペア:

[(1, 256220895), (3, 85406965), (5, 51244179), (7, 36602985), (15, 17081393), (21, 12200995), (35, 7320597), (71, 3608745), (105, 2440199), (213, 1202915), (355, 721749), (497, 515535), (1065, 240583), (1491, 171845), (2485, 103107), (7455, 34369)]