20506576

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:359

約数の個数: 40

約数和(自身を含む): 40915784

約数和(自身を除く): 20409208

約数列:

[1, 2, 4, 8, 16, 73, 97, 146, 181, 194, 292, 362, 388, 584, 724, 776, 1168, 1448, 1552, 2896, 7081, 13213, 14162, 17557, 26426, 28324, 35114, 52852, 56648, 70228, 105704, 113296, 140456, 211408, 280912, 1281661, 2563322, 5126644, 10253288, 20506576]

約数ペア:

[(1, 20506576), (2, 10253288), (4, 5126644), (8, 2563322), (16, 1281661), (73, 280912), (97, 211408), (146, 140456), (181, 113296), (194, 105704), (292, 70228), (362, 56648), (388, 52852), (584, 35114), (724, 28324), (776, 26426), (1168, 17557), (1448, 14162), (1552, 13213), (2896, 7081)]