1998520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2939}}^1$

素因数の和:2967

約数の個数: 32

約数和(自身を含む): 4762800

約数和(自身を除く): 2764280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 2939, 5878, 11756, 14695, 23512, 29390, 49963, 58780, 99926, 117560, 199852, 249815, 399704, 499630, 999260, 1998520]

約数ペア:

[(1, 1998520), (2, 999260), (4, 499630), (5, 399704), (8, 249815), (10, 199852), (17, 117560), (20, 99926), (34, 58780), (40, 49963), (68, 29390), (85, 23512), (136, 14695), (170, 11756), (340, 5878), (680, 2939)]