81159015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1987}}^1$

素因数の和:2391

約数の個数: 32

約数和(自身を含む): 148861440

約数和(自身を除く): 67702425

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 389, 1167, 1945, 1987, 2723, 5835, 5961, 8169, 9935, 13615, 13909, 29805, 40845, 41727, 69545, 208635, 772943, 2318829, 3864715, 5410601, 11594145, 16231803, 27053005, 81159015]

約数ペア:

[(1, 81159015), (3, 27053005), (5, 16231803), (7, 11594145), (15, 5410601), (21, 3864715), (35, 2318829), (105, 772943), (389, 208635), (1167, 69545), (1945, 41727), (1987, 40845), (2723, 29805), (5835, 13909), (5961, 13615), (8169, 9935)]