15638216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 34560000

約数和(自身を除く): 18921784

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 47, 76, 88, 94, 152, 188, 199, 209, 376, 398, 418, 517, 796, 836, 893, 1034, 1592, 1672, 1786, 2068, 2189, 3572, 3781, 4136, 4378, 7144, 7562, 8756, 9353, 9823, 15124, 17512, 18706, 19646, 30248, 37412, 39292, 41591, 74824, 78584, 83182, 102883, 166364, 177707, 205766, 332728, 355414, 411532, 710828, 823064, 1421656, 1954777, 3909554, 7819108, 15638216]

約数ペア:

[(1, 15638216), (2, 7819108), (4, 3909554), (8, 1954777), (11, 1421656), (19, 823064), (22, 710828), (38, 411532), (44, 355414), (47, 332728), (76, 205766), (88, 177707), (94, 166364), (152, 102883), (188, 83182), (199, 78584), (209, 74824), (376, 41591), (398, 39292), (418, 37412), (517, 30248), (796, 19646), (836, 18706), (893, 17512), (1034, 15124), (1592, 9823), (1672, 9353), (1786, 8756), (2068, 7562), (2189, 7144), (3572, 4378), (3781, 4136)]