164057840

素因数分解:

$2^4\times 5^1\times {\mathrm{977}}^1\times {\mathrm{2099}}^1$

素因数の和:3089

約数の個数: 40

約数和(自身を含む): 382006800

約数和(自身を除く): 217948960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 977, 1954, 2099, 3908, 4198, 4885, 7816, 8396, 9770, 10495, 15632, 16792, 19540, 20990, 33584, 39080, 41980, 78160, 83960, 167920, 2050723, 4101446, 8202892, 10253615, 16405784, 20507230, 32811568, 41014460, 82028920, 164057840]

約数ペア:

[(1, 164057840), (2, 82028920), (4, 41014460), (5, 32811568), (8, 20507230), (10, 16405784), (16, 10253615), (20, 8202892), (40, 4101446), (80, 2050723), (977, 167920), (1954, 83960), (2099, 78160), (3908, 41980), (4198, 39080), (4885, 33584), (7816, 20990), (8396, 19540), (9770, 16792), (10495, 15632)]