280180365

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{42743}}^1$

素因数の和:42793

約数の個数: 32

約数和(自身を含む): 492410880

約数和(自身を除く): 212230515

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 285, 345, 437, 1311, 2185, 6555, 42743, 128229, 213715, 641145, 812117, 983089, 2436351, 2949267, 4060585, 4915445, 12181755, 14746335, 18678691, 56036073, 93393455, 280180365]

約数ペア:

[(1, 280180365), (3, 93393455), (5, 56036073), (15, 18678691), (19, 14746335), (23, 12181755), (57, 4915445), (69, 4060585), (95, 2949267), (115, 2436351), (285, 983089), (345, 812117), (437, 641145), (1311, 213715), (2185, 128229), (6555, 42743)]