17487820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5431}}^1$

素因数の和:5470

約数の個数: 48

約数和(自身を含む): 43803648

約数和(自身を除く): 26315828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 5431, 10862, 21724, 27155, 38017, 54310, 76034, 108620, 124913, 152068, 190085, 249826, 380170, 499652, 624565, 760340, 874391, 1249130, 1748782, 2498260, 3497564, 4371955, 8743910, 17487820]

約数ペア:

[(1, 17487820), (2, 8743910), (4, 4371955), (5, 3497564), (7, 2498260), (10, 1748782), (14, 1249130), (20, 874391), (23, 760340), (28, 624565), (35, 499652), (46, 380170), (70, 249826), (92, 190085), (115, 152068), (140, 124913), (161, 108620), (230, 76034), (322, 54310), (460, 38017), (644, 27155), (805, 21724), (1610, 10862), (3220, 5431)]