1690780640

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{245753}}^1$

素因数の和:245811

約数の個数: 48

約数和(自身を含む): 4087380528

約数和(自身を除く): 2396599888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 6880, 245753, 491506, 983012, 1228765, 1966024, 2457530, 3932048, 4915060, 7864096, 9830120, 10567379, 19660240, 21134758, 39320480, 42269516, 52836895, 84539032, 105673790, 169078064, 211347580, 338156128, 422695160, 845390320, 1690780640]

約数ペア:

[(1, 1690780640), (2, 845390320), (4, 422695160), (5, 338156128), (8, 211347580), (10, 169078064), (16, 105673790), (20, 84539032), (32, 52836895), (40, 42269516), (43, 39320480), (80, 21134758), (86, 19660240), (160, 10567379), (172, 9830120), (215, 7864096), (344, 4915060), (430, 3932048), (688, 2457530), (860, 1966024), (1376, 1228765), (1720, 983012), (3440, 491506), (6880, 245753)]