28348520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{887}}^1$

素因数の和:962

約数の個数: 64

約数和(自身を含む): 69050880

約数和(自身を除く): 40702360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 680, 799, 887, 940, 1598, 1774, 1880, 3196, 3548, 3995, 4435, 6392, 7096, 7990, 8870, 15079, 15980, 17740, 30158, 31960, 35480, 41689, 60316, 75395, 83378, 120632, 150790, 166756, 208445, 301580, 333512, 416890, 603160, 708713, 833780, 1417426, 1667560, 2834852, 3543565, 5669704, 7087130, 14174260, 28348520]

約数ペア:

[(1, 28348520), (2, 14174260), (4, 7087130), (5, 5669704), (8, 3543565), (10, 2834852), (17, 1667560), (20, 1417426), (34, 833780), (40, 708713), (47, 603160), (68, 416890), (85, 333512), (94, 301580), (136, 208445), (170, 166756), (188, 150790), (235, 120632), (340, 83378), (376, 75395), (470, 60316), (680, 41689), (799, 35480), (887, 31960), (940, 30158), (1598, 17740), (1774, 15980), (1880, 15079), (3196, 8870), (3548, 7990), (3995, 7096), (4435, 6392)]