1393456

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:181

約数の個数: 40

約数和(自身を含む): 2946240

約数和(自身を除く): 1552784

約数列:

[1, 2, 4, 8, 16, 17, 34, 47, 68, 94, 109, 136, 188, 218, 272, 376, 436, 752, 799, 872, 1598, 1744, 1853, 3196, 3706, 5123, 6392, 7412, 10246, 12784, 14824, 20492, 29648, 40984, 81968, 87091, 174182, 348364, 696728, 1393456]

約数ペア:

[(1, 1393456), (2, 696728), (4, 348364), (8, 174182), (16, 87091), (17, 81968), (34, 40984), (47, 29648), (68, 20492), (94, 14824), (109, 12784), (136, 10246), (188, 7412), (218, 6392), (272, 5123), (376, 3706), (436, 3196), (752, 1853), (799, 1744), (872, 1598)]