280994680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{7103}}^1$

素因数の和:7180

約数の個数: 64

約数和(自身を含む): 675164160

約数和(自身を除く): 394169480

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 860, 920, 989, 1720, 1978, 3956, 4945, 7103, 7912, 9890, 14206, 19780, 28412, 35515, 39560, 56824, 71030, 142060, 163369, 284120, 305429, 326738, 610858, 653476, 816845, 1221716, 1306952, 1527145, 1633690, 2443432, 3054290, 3267380, 6108580, 6534760, 7024867, 12217160, 14049734, 28099468, 35124335, 56198936, 70248670, 140497340, 280994680]

約数ペア:

[(1, 280994680), (2, 140497340), (4, 70248670), (5, 56198936), (8, 35124335), (10, 28099468), (20, 14049734), (23, 12217160), (40, 7024867), (43, 6534760), (46, 6108580), (86, 3267380), (92, 3054290), (115, 2443432), (172, 1633690), (184, 1527145), (215, 1306952), (230, 1221716), (344, 816845), (430, 653476), (460, 610858), (860, 326738), (920, 305429), (989, 284120), (1720, 163369), (1978, 142060), (3956, 71030), (4945, 56824), (7103, 39560), (7912, 35515), (9890, 28412), (14206, 19780)]