18681440

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2203}}^1$

素因数の和:2271

約数の個数: 48

約数和(自身を含む): 44988048

約数和(自身を除く): 26306608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 2203, 4240, 4406, 8480, 8812, 11015, 17624, 22030, 35248, 44060, 70496, 88120, 116759, 176240, 233518, 352480, 467036, 583795, 934072, 1167590, 1868144, 2335180, 3736288, 4670360, 9340720, 18681440]

約数ペア:

[(1, 18681440), (2, 9340720), (4, 4670360), (5, 3736288), (8, 2335180), (10, 1868144), (16, 1167590), (20, 934072), (32, 583795), (40, 467036), (53, 352480), (80, 233518), (106, 176240), (160, 116759), (212, 88120), (265, 70496), (424, 44060), (530, 35248), (848, 22030), (1060, 17624), (1696, 11015), (2120, 8812), (2203, 8480), (4240, 4406)]