19988600

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5879}}^1$

素因数の和:5912

約数の個数: 48

約数和(自身を含む): 49215600

約数和(自身を除く): 29227000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 136, 170, 200, 340, 425, 680, 850, 1700, 3400, 5879, 11758, 23516, 29395, 47032, 58790, 99943, 117580, 146975, 199886, 235160, 293950, 399772, 499715, 587900, 799544, 999430, 1175800, 1998860, 2498575, 3997720, 4997150, 9994300, 19988600]

約数ペア:

[(1, 19988600), (2, 9994300), (4, 4997150), (5, 3997720), (8, 2498575), (10, 1998860), (17, 1175800), (20, 999430), (25, 799544), (34, 587900), (40, 499715), (50, 399772), (68, 293950), (85, 235160), (100, 199886), (136, 146975), (170, 117580), (200, 99943), (340, 58790), (425, 47032), (680, 29395), (850, 23516), (1700, 11758), (3400, 5879)]