28286475

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 55978560

約数和(自身を除く): 27692085

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 43, 49, 75, 105, 129, 147, 175, 179, 215, 245, 301, 525, 537, 645, 735, 895, 903, 1075, 1225, 1253, 1505, 2107, 2685, 3225, 3675, 3759, 4475, 4515, 6265, 6321, 7525, 7697, 8771, 10535, 13425, 18795, 22575, 23091, 26313, 31325, 31605, 38485, 43855, 52675, 53879, 93975, 115455, 131565, 158025, 161637, 192425, 219275, 269395, 377153, 577275, 657825, 808185, 1131459, 1346975, 1885765, 4040925, 5657295, 9428825, 28286475]

約数ペア:

[(1, 28286475), (3, 9428825), (5, 5657295), (7, 4040925), (15, 1885765), (21, 1346975), (25, 1131459), (35, 808185), (43, 657825), (49, 577275), (75, 377153), (105, 269395), (129, 219275), (147, 192425), (175, 161637), (179, 158025), (215, 131565), (245, 115455), (301, 93975), (525, 53879), (537, 52675), (645, 43855), (735, 38485), (895, 31605), (903, 31325), (1075, 26313), (1225, 23091), (1253, 22575), (1505, 18795), (2107, 13425), (2685, 10535), (3225, 8771), (3675, 7697), (3759, 7525), (4475, 6321), (4515, 6265)]