20398096

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3947}}^1$

素因数の和:3991

約数の個数: 40

約数和(自身を含む): 44059680

約数和(自身を除く): 23661584

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 68, 76, 136, 152, 272, 304, 323, 646, 1292, 2584, 3947, 5168, 7894, 15788, 31576, 63152, 67099, 74993, 134198, 149986, 268396, 299972, 536792, 599944, 1073584, 1199888, 1274881, 2549762, 5099524, 10199048, 20398096]

約数ペア:

[(1, 20398096), (2, 10199048), (4, 5099524), (8, 2549762), (16, 1274881), (17, 1199888), (19, 1073584), (34, 599944), (38, 536792), (68, 299972), (76, 268396), (136, 149986), (152, 134198), (272, 74993), (304, 67099), (323, 63152), (646, 31576), (1292, 15788), (2584, 7894), (3947, 5168)]