68389215

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{997}}^1$

素因数の和:1291

約数の個数: 32

約数和(自身を含む): 116406720

約数和(自身を除く): 48017505

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 269, 807, 997, 1345, 2991, 4035, 4573, 4985, 13719, 14955, 16949, 22865, 50847, 68595, 84745, 254235, 268193, 804579, 1340965, 4022895, 4559281, 13677843, 22796405, 68389215]

約数ペア:

[(1, 68389215), (3, 22796405), (5, 13677843), (15, 4559281), (17, 4022895), (51, 1340965), (85, 804579), (255, 268193), (269, 254235), (807, 84745), (997, 68595), (1345, 50847), (2991, 22865), (4035, 16949), (4573, 14955), (4985, 13719)]