28334985

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2029}}^1$

素因数の和:2070

約数の個数: 48

約数和(自身を含む): 55540800

約数和(自身を除く): 27205815

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1995, 2029, 2793, 4655, 6087, 10145, 13965, 14203, 30435, 38551, 42609, 71015, 99421, 115653, 192755, 213045, 269857, 298263, 497105, 578265, 809571, 1349285, 1491315, 1888999, 4047855, 5666997, 9444995, 28334985]

約数ペア:

[(1, 28334985), (3, 9444995), (5, 5666997), (7, 4047855), (15, 1888999), (19, 1491315), (21, 1349285), (35, 809571), (49, 578265), (57, 497105), (95, 298263), (105, 269857), (133, 213045), (147, 192755), (245, 115653), (285, 99421), (399, 71015), (665, 42609), (735, 38551), (931, 30435), (1995, 14203), (2029, 13965), (2793, 10145), (4655, 6087)]