20220760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{281}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 52384320

約数和(自身を除く): 32163560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 281, 514, 562, 1028, 1124, 1285, 1405, 1799, 1967, 2056, 2248, 2570, 2810, 3598, 3934, 5140, 5620, 7196, 7868, 8995, 9835, 10280, 11240, 14392, 15736, 17990, 19670, 35980, 39340, 71960, 72217, 78680, 144434, 288868, 361085, 505519, 577736, 722170, 1011038, 1444340, 2022076, 2527595, 2888680, 4044152, 5055190, 10110380, 20220760]

約数ペア:

[(1, 20220760), (2, 10110380), (4, 5055190), (5, 4044152), (7, 2888680), (8, 2527595), (10, 2022076), (14, 1444340), (20, 1011038), (28, 722170), (35, 577736), (40, 505519), (56, 361085), (70, 288868), (140, 144434), (257, 78680), (280, 72217), (281, 71960), (514, 39340), (562, 35980), (1028, 19670), (1124, 17990), (1285, 15736), (1405, 14392), (1799, 11240), (1967, 10280), (2056, 9835), (2248, 8995), (2570, 7868), (2810, 7196), (3598, 5620), (3934, 5140)]