20405704

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{461}}^1\times {\mathrm{503}}^1$

素因数の和:981

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 21506936

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 461, 503, 922, 1006, 1844, 2012, 3688, 4024, 5071, 5533, 10142, 11066, 20284, 22132, 40568, 44264, 231883, 463766, 927532, 1855064, 2550713, 5101426, 10202852, 20405704]

約数ペア:

[(1, 20405704), (2, 10202852), (4, 5101426), (8, 2550713), (11, 1855064), (22, 927532), (44, 463766), (88, 231883), (461, 44264), (503, 40568), (922, 22132), (1006, 20284), (1844, 11066), (2012, 10142), (3688, 5533), (4024, 5071)]