81395696

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{267749}}^1$

素因数の和:267776

約数の個数: 20

約数和(自身を含む): 166005000

約数和(自身を除く): 84609304

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 267749, 535498, 1070996, 2141992, 4283984, 5087231, 10174462, 20348924, 40697848, 81395696]

約数ペア:

[(1, 81395696), (2, 40697848), (4, 20348924), (8, 10174462), (16, 5087231), (19, 4283984), (38, 2141992), (76, 1070996), (152, 535498), (304, 267749)]