81896010

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{389981}}^1$

素因数の和:389998

約数の個数: 32

約数和(自身を含む): 224629632

約数和(自身を除く): 142733622

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 389981, 779962, 1169943, 1949905, 2339886, 2729867, 3899810, 5459734, 5849715, 8189601, 11699430, 13649335, 16379202, 27298670, 40948005, 81896010]

約数ペア:

[(1, 81896010), (2, 40948005), (3, 27298670), (5, 16379202), (6, 13649335), (7, 11699430), (10, 8189601), (14, 5849715), (15, 5459734), (21, 3899810), (30, 2729867), (35, 2339886), (42, 1949905), (70, 1169943), (105, 779962), (210, 389981)]