20808304

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{619}}^1$

素因数の和:829

約数の個数: 40

約数和(自身を含む): 44282880

約数和(自身を除く): 23474576

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 191, 382, 619, 764, 1238, 1528, 2101, 2476, 3056, 4202, 4952, 6809, 8404, 9904, 13618, 16808, 27236, 33616, 54472, 108944, 118229, 236458, 472916, 945832, 1300519, 1891664, 2601038, 5202076, 10404152, 20808304]

約数ペア:

[(1, 20808304), (2, 10404152), (4, 5202076), (8, 2601038), (11, 1891664), (16, 1300519), (22, 945832), (44, 472916), (88, 236458), (176, 118229), (191, 108944), (382, 54472), (619, 33616), (764, 27236), (1238, 16808), (1528, 13618), (2101, 9904), (2476, 8404), (3056, 6809), (4202, 4952)]