2191460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 4972800

約数和(自身を除く): 2781340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 79, 95, 146, 158, 190, 292, 316, 365, 380, 395, 730, 790, 1387, 1460, 1501, 1580, 2774, 3002, 5548, 5767, 6004, 6935, 7505, 11534, 13870, 15010, 23068, 27740, 28835, 30020, 57670, 109573, 115340, 219146, 438292, 547865, 1095730, 2191460]

約数ペア:

[(1, 2191460), (2, 1095730), (4, 547865), (5, 438292), (10, 219146), (19, 115340), (20, 109573), (38, 57670), (73, 30020), (76, 28835), (79, 27740), (95, 23068), (146, 15010), (158, 13870), (190, 11534), (292, 7505), (316, 6935), (365, 6004), (380, 5767), (395, 5548), (730, 3002), (790, 2774), (1387, 1580), (1460, 1501)]