279607720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{142657}}^1$

素因数の和:142682

約数の個数: 48

約数和(自身を含む): 731835540

約数和(自身を除く): 452227820

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 142657, 285314, 570628, 713285, 998599, 1141256, 1426570, 1997198, 2853140, 3994396, 4992995, 5706280, 6990193, 7988792, 9985990, 13980386, 19971980, 27960772, 34950965, 39943960, 55921544, 69901930, 139803860, 279607720]

約数ペア:

[(1, 279607720), (2, 139803860), (4, 69901930), (5, 55921544), (7, 39943960), (8, 34950965), (10, 27960772), (14, 19971980), (20, 13980386), (28, 9985990), (35, 7988792), (40, 6990193), (49, 5706280), (56, 4992995), (70, 3994396), (98, 2853140), (140, 1997198), (196, 1426570), (245, 1141256), (280, 998599), (392, 713285), (490, 570628), (980, 285314), (1960, 142657)]