856353890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{1747661}}^1$

素因数の和:1747682

約数の個数: 24

約数和(自身を含む): 1793101212

約数和(自身を除く): 936747322

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 1747661, 3495322, 8738305, 12233627, 17476610, 24467254, 61168135, 85635389, 122336270, 171270778, 428176945, 856353890]

約数ペア:

[(1, 856353890), (2, 428176945), (5, 171270778), (7, 122336270), (10, 85635389), (14, 61168135), (35, 24467254), (49, 17476610), (70, 12233627), (98, 8738305), (245, 3495322), (490, 1747661)]