8400028

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{491}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 18514944

約数和(自身を除く): 10114916

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 47, 52, 91, 94, 182, 188, 329, 364, 491, 611, 658, 982, 1222, 1316, 1964, 2444, 3437, 4277, 6383, 6874, 8554, 12766, 13748, 17108, 23077, 25532, 44681, 46154, 89362, 92308, 161539, 178724, 300001, 323078, 600002, 646156, 1200004, 2100007, 4200014, 8400028]

約数ペア:

[(1, 8400028), (2, 4200014), (4, 2100007), (7, 1200004), (13, 646156), (14, 600002), (26, 323078), (28, 300001), (47, 178724), (52, 161539), (91, 92308), (94, 89362), (182, 46154), (188, 44681), (329, 25532), (364, 23077), (491, 17108), (611, 13748), (658, 12766), (982, 8554), (1222, 6874), (1316, 6383), (1964, 4277), (2444, 3437)]