1687420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{709}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 4294080

約数和(自身を除く): 2606660

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 709, 1190, 1418, 2380, 2836, 3545, 4963, 7090, 9926, 12053, 14180, 19852, 24106, 24815, 48212, 49630, 60265, 84371, 99260, 120530, 168742, 241060, 337484, 421855, 843710, 1687420]

約数ペア:

[(1, 1687420), (2, 843710), (4, 421855), (5, 337484), (7, 241060), (10, 168742), (14, 120530), (17, 99260), (20, 84371), (28, 60265), (34, 49630), (35, 48212), (68, 24815), (70, 24106), (85, 19852), (119, 14180), (140, 12053), (170, 9926), (238, 7090), (340, 4963), (476, 3545), (595, 2836), (709, 2380), (1190, 1418)]