680205400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1249}}^1$

素因数の和:1661

約数の個数: 96

約数和(自身を含む): 1813500000

約数和(自身を除く): 1133294600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 389, 700, 778, 1249, 1400, 1556, 1945, 2498, 2723, 3112, 3890, 4996, 5446, 6245, 7780, 8743, 9725, 9992, 10892, 12490, 13615, 15560, 17486, 19450, 21784, 24980, 27230, 31225, 34972, 38900, 43715, 49960, 54460, 62450, 68075, 69944, 77800, 87430, 108920, 124900, 136150, 174860, 218575, 249800, 272300, 349720, 437150, 485861, 544600, 874300, 971722, 1748600, 1943444, 2429305, 3401027, 3886888, 4858610, 6802054, 9717220, 12146525, 13604108, 17005135, 19434440, 24293050, 27208216, 34010270, 48586100, 68020540, 85025675, 97172200, 136041080, 170051350, 340102700, 680205400]

約数ペア:

[(1, 680205400), (2, 340102700), (4, 170051350), (5, 136041080), (7, 97172200), (8, 85025675), (10, 68020540), (14, 48586100), (20, 34010270), (25, 27208216), (28, 24293050), (35, 19434440), (40, 17005135), (50, 13604108), (56, 12146525), (70, 9717220), (100, 6802054), (140, 4858610), (175, 3886888), (200, 3401027), (280, 2429305), (350, 1943444), (389, 1748600), (700, 971722), (778, 874300), (1249, 544600), (1400, 485861), (1556, 437150), (1945, 349720), (2498, 272300), (2723, 249800), (3112, 218575), (3890, 174860), (4996, 136150), (5446, 124900), (6245, 108920), (7780, 87430), (8743, 77800), (9725, 69944), (9992, 68075), (10892, 62450), (12490, 54460), (13615, 49960), (15560, 43715), (17486, 38900), (19450, 34972), (21784, 31225), (24980, 27230)]