140326280

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{13339}}^1$

素因数の和:13613

約数の個数: 32

約数和(自身を含む): 316958400

約数和(自身を除く): 176632120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 10520, 13339, 26678, 53356, 66695, 106712, 133390, 266780, 533560, 3508157, 7016314, 14032628, 17540785, 28065256, 35081570, 70163140, 140326280]

約数ペア:

[(1, 140326280), (2, 70163140), (4, 35081570), (5, 28065256), (8, 17540785), (10, 14032628), (20, 7016314), (40, 3508157), (263, 533560), (526, 266780), (1052, 133390), (1315, 106712), (2104, 66695), (2630, 53356), (5260, 26678), (10520, 13339)]