87815745

素因数分解:

$3^4\times 5^1\times {\mathrm{216829}}^1$

素因数の和:216846

約数の個数: 20

約数和(自身を含む): 157418580

約数和(自身を除く): 69602835

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 216829, 650487, 1084145, 1951461, 3252435, 5854383, 9757305, 17563149, 29271915, 87815745]

約数ペア:

[(1, 87815745), (3, 29271915), (5, 17563149), (9, 9757305), (15, 5854383), (27, 3252435), (45, 1951461), (81, 1084145), (135, 650487), (405, 216829)]