389645620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{214091}}^1$

素因数の和:214120

約数の個数: 48

約数和(自身を含む): 1007088768

約数和(自身を除く): 617443148

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 214091, 428182, 856364, 1070455, 1498637, 2140910, 2783183, 2997274, 4281820, 5566366, 5994548, 7493185, 11132732, 13915915, 14986370, 19482281, 27831830, 29972740, 38964562, 55663660, 77929124, 97411405, 194822810, 389645620]

約数ペア:

[(1, 389645620), (2, 194822810), (4, 97411405), (5, 77929124), (7, 55663660), (10, 38964562), (13, 29972740), (14, 27831830), (20, 19482281), (26, 14986370), (28, 13915915), (35, 11132732), (52, 7493185), (65, 5994548), (70, 5566366), (91, 4281820), (130, 2997274), (140, 2783183), (182, 2140910), (260, 1498637), (364, 1070455), (455, 856364), (910, 428182), (1820, 214091)]