80390380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{82031}}^1$

素因数の和:82054

約数の個数: 36

約数和(自身を含む): 196384608

約数和(自身を除く): 115994228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 82031, 164062, 328124, 410155, 574217, 820310, 1148434, 1640620, 2296868, 2871085, 4019519, 5742170, 8039038, 11484340, 16078076, 20097595, 40195190, 80390380]

約数ペア:

[(1, 80390380), (2, 40195190), (4, 20097595), (5, 16078076), (7, 11484340), (10, 8039038), (14, 5742170), (20, 4019519), (28, 2871085), (35, 2296868), (49, 1640620), (70, 1148434), (98, 820310), (140, 574217), (196, 410155), (245, 328124), (490, 164062), (980, 82031)]