28984900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{881}}^1$

素因数の和:949

約数の個数: 72

約数和(自身を含む): 73495296

約数和(自身を除く): 44510396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 47, 50, 70, 94, 100, 140, 175, 188, 235, 329, 350, 470, 658, 700, 881, 940, 1175, 1316, 1645, 1762, 2350, 3290, 3524, 4405, 4700, 6167, 6580, 8225, 8810, 12334, 16450, 17620, 22025, 24668, 30835, 32900, 41407, 44050, 61670, 82814, 88100, 123340, 154175, 165628, 207035, 289849, 308350, 414070, 579698, 616700, 828140, 1035175, 1159396, 1449245, 2070350, 2898490, 4140700, 5796980, 7246225, 14492450, 28984900]

約数ペア:

[(1, 28984900), (2, 14492450), (4, 7246225), (5, 5796980), (7, 4140700), (10, 2898490), (14, 2070350), (20, 1449245), (25, 1159396), (28, 1035175), (35, 828140), (47, 616700), (50, 579698), (70, 414070), (94, 308350), (100, 289849), (140, 207035), (175, 165628), (188, 154175), (235, 123340), (329, 88100), (350, 82814), (470, 61670), (658, 44050), (700, 41407), (881, 32900), (940, 30835), (1175, 24668), (1316, 22025), (1645, 17620), (1762, 16450), (2350, 12334), (3290, 8810), (3524, 8225), (4405, 6580), (4700, 6167)]