28686700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{383}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 71995392

約数和(自身を除く): 43308692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 107, 140, 175, 214, 350, 383, 428, 535, 700, 749, 766, 1070, 1498, 1532, 1915, 2140, 2675, 2681, 2996, 3745, 3830, 5350, 5362, 7490, 7660, 9575, 10700, 10724, 13405, 14980, 18725, 19150, 26810, 37450, 38300, 40981, 53620, 67025, 74900, 81962, 134050, 163924, 204905, 268100, 286867, 409810, 573734, 819620, 1024525, 1147468, 1434335, 2049050, 2868670, 4098100, 5737340, 7171675, 14343350, 28686700]

約数ペア:

[(1, 28686700), (2, 14343350), (4, 7171675), (5, 5737340), (7, 4098100), (10, 2868670), (14, 2049050), (20, 1434335), (25, 1147468), (28, 1024525), (35, 819620), (50, 573734), (70, 409810), (100, 286867), (107, 268100), (140, 204905), (175, 163924), (214, 134050), (350, 81962), (383, 74900), (428, 67025), (535, 53620), (700, 40981), (749, 38300), (766, 37450), (1070, 26810), (1498, 19150), (1532, 18725), (1915, 14980), (2140, 13405), (2675, 10724), (2681, 10700), (2996, 9575), (3745, 7660), (3830, 7490), (5350, 5362)]