81509660

素因数分解:

$2^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{14401}}^1$

素因数の和:14693

約数の個数: 24

約数和(自身を含む): 171787056

約数和(自身を除く): 90277396

約数列:

[1, 2, 4, 5, 10, 20, 283, 566, 1132, 1415, 2830, 5660, 14401, 28802, 57604, 72005, 144010, 288020, 4075483, 8150966, 16301932, 20377415, 40754830, 81509660]

約数ペア:

[(1, 81509660), (2, 40754830), (4, 20377415), (5, 16301932), (10, 8150966), (20, 4075483), (283, 288020), (566, 144010), (1132, 72005), (1415, 57604), (2830, 28802), (5660, 14401)]