2888680

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{281}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 6548040

約数和(自身を除く): 3659360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 281, 514, 562, 1028, 1124, 1285, 1405, 2056, 2248, 2570, 2810, 5140, 5620, 10280, 11240, 72217, 144434, 288868, 361085, 577736, 722170, 1444340, 2888680]

約数ペア:

[(1, 2888680), (2, 1444340), (4, 722170), (5, 577736), (8, 361085), (10, 288868), (20, 144434), (40, 72217), (257, 11240), (281, 10280), (514, 5620), (562, 5140), (1028, 2810), (1124, 2570), (1285, 2248), (1405, 2056)]