28252455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 57424896

約数和(自身を除く): 29172441

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 61, 77, 105, 165, 183, 231, 305, 385, 401, 427, 671, 915, 1155, 1203, 1281, 2005, 2013, 2135, 2807, 3355, 4411, 4697, 6015, 6405, 8421, 10065, 13233, 14035, 14091, 22055, 23485, 24461, 30877, 42105, 66165, 70455, 73383, 92631, 122305, 154385, 171227, 269071, 366915, 463155, 513681, 807213, 856135, 1345355, 1883497, 2568405, 4036065, 5650491, 9417485, 28252455]

約数ペア:

[(1, 28252455), (3, 9417485), (5, 5650491), (7, 4036065), (11, 2568405), (15, 1883497), (21, 1345355), (33, 856135), (35, 807213), (55, 513681), (61, 463155), (77, 366915), (105, 269071), (165, 171227), (183, 154385), (231, 122305), (305, 92631), (385, 73383), (401, 70455), (427, 66165), (671, 42105), (915, 30877), (1155, 24461), (1203, 23485), (1281, 22055), (2005, 14091), (2013, 14035), (2135, 13233), (2807, 10065), (3355, 8421), (4411, 6405), (4697, 6015)]