280601776

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{439}}^2$

素因数の和:906

約数の個数: 60

約数和(自身を含む): 670654992

約数和(自身を除く): 390053216

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 439, 728, 878, 1456, 1756, 3073, 3512, 5707, 6146, 7024, 11414, 12292, 22828, 24584, 39949, 45656, 49168, 79898, 91312, 159796, 192721, 319592, 385442, 639184, 770884, 1349047, 1541768, 2505373, 2698094, 3083536, 5010746, 5396188, 10021492, 10792376, 17537611, 20042984, 21584752, 35075222, 40085968, 70150444, 140300888, 280601776]

約数ペア:

[(1, 280601776), (2, 140300888), (4, 70150444), (7, 40085968), (8, 35075222), (13, 21584752), (14, 20042984), (16, 17537611), (26, 10792376), (28, 10021492), (52, 5396188), (56, 5010746), (91, 3083536), (104, 2698094), (112, 2505373), (182, 1541768), (208, 1349047), (364, 770884), (439, 639184), (728, 385442), (878, 319592), (1456, 192721), (1756, 159796), (3073, 91312), (3512, 79898), (5707, 49168), (6146, 45656), (7024, 39949), (11414, 24584), (12292, 22828)]