20402716

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:573

約数の個数: 24

約数和(自身を含む): 36408960

約数和(自身を除く): 16006244

約数列:

[1, 2, 4, 89, 178, 223, 257, 356, 446, 514, 892, 1028, 19847, 22873, 39694, 45746, 57311, 79388, 91492, 114622, 229244, 5100679, 10201358, 20402716]

約数ペア:

[(1, 20402716), (2, 10201358), (4, 5100679), (89, 229244), (178, 114622), (223, 91492), (257, 79388), (356, 57311), (446, 45746), (514, 39694), (892, 22873), (1028, 19847)]