201817990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{613}}^1$

素因数の和:745

約数の個数: 64

約数和(自身を含む): 412195392

約数和(自身を除く): 210377402

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 73, 82, 110, 146, 205, 365, 410, 451, 613, 730, 803, 902, 1226, 1606, 2255, 2993, 3065, 4015, 4510, 5986, 6130, 6743, 8030, 13486, 14965, 25133, 29930, 32923, 33715, 44749, 50266, 65846, 67430, 89498, 125665, 164615, 223745, 251330, 276463, 329230, 447490, 492239, 552926, 984478, 1382315, 1834709, 2461195, 2764630, 3669418, 4922390, 9173545, 18347090, 20181799, 40363598, 100908995, 201817990]

約数ペア:

[(1, 201817990), (2, 100908995), (5, 40363598), (10, 20181799), (11, 18347090), (22, 9173545), (41, 4922390), (55, 3669418), (73, 2764630), (82, 2461195), (110, 1834709), (146, 1382315), (205, 984478), (365, 552926), (410, 492239), (451, 447490), (613, 329230), (730, 276463), (803, 251330), (902, 223745), (1226, 164615), (1606, 125665), (2255, 89498), (2993, 67430), (3065, 65846), (4015, 50266), (4510, 44749), (5986, 33715), (6130, 32923), (6743, 29930), (8030, 25133), (13486, 14965)]