990236

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 1893360

約数和(自身を除く): 903124

約数列:

[1, 2, 4, 13, 26, 52, 137, 139, 274, 278, 548, 556, 1781, 1807, 3562, 3614, 7124, 7228, 19043, 38086, 76172, 247559, 495118, 990236]

約数ペア:

[(1, 990236), (2, 495118), (4, 247559), (13, 76172), (26, 38086), (52, 19043), (137, 7228), (139, 7124), (274, 3614), (278, 3562), (548, 1807), (556, 1781)]