12490790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:441

約数の個数: 48

約数和(自身を含む): 25693200

約数和(自身を除く): 13202410

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 169, 190, 247, 338, 389, 494, 778, 845, 1235, 1690, 1945, 2470, 3211, 3890, 5057, 6422, 7391, 10114, 14782, 16055, 25285, 32110, 36955, 50570, 65741, 73910, 96083, 131482, 192166, 328705, 480415, 657410, 960830, 1249079, 2498158, 6245395, 12490790]

約数ペア:

[(1, 12490790), (2, 6245395), (5, 2498158), (10, 1249079), (13, 960830), (19, 657410), (26, 480415), (38, 328705), (65, 192166), (95, 131482), (130, 96083), (169, 73910), (190, 65741), (247, 50570), (338, 36955), (389, 32110), (494, 25285), (778, 16055), (845, 14782), (1235, 10114), (1690, 7391), (1945, 6422), (2470, 5057), (3211, 3890)]