20078942

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 33566400

約数和(自身を除く): 13487458

約数列:

[1, 2, 13, 26, 71, 73, 142, 146, 149, 298, 923, 949, 1846, 1898, 1937, 3874, 5183, 10366, 10579, 10877, 21158, 21754, 67379, 134758, 137527, 141401, 275054, 282802, 772267, 1544534, 10039471, 20078942]

約数ペア:

[(1, 20078942), (2, 10039471), (13, 1544534), (26, 772267), (71, 282802), (73, 275054), (142, 141401), (146, 137527), (149, 134758), (298, 67379), (923, 21754), (949, 21158), (1846, 10877), (1898, 10579), (1937, 10366), (3874, 5183)]