28083615

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2011}}^1$

素因数の和:2052

約数の個数: 48

約数和(自身を含む): 55048320

約数和(自身を除く): 26964705

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1995, 2011, 2793, 4655, 6033, 10055, 13965, 14077, 30165, 38209, 42231, 70385, 98539, 114627, 191045, 211155, 267463, 295617, 492695, 573135, 802389, 1337315, 1478085, 1872241, 4011945, 5616723, 9361205, 28083615]

約数ペア:

[(1, 28083615), (3, 9361205), (5, 5616723), (7, 4011945), (15, 1872241), (19, 1478085), (21, 1337315), (35, 802389), (49, 573135), (57, 492695), (95, 295617), (105, 267463), (133, 211155), (147, 191045), (245, 114627), (285, 98539), (399, 70385), (665, 42231), (735, 38209), (931, 30165), (1995, 14077), (2011, 13965), (2793, 10055), (4655, 6033)]