647007620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4621483}}^1$

素因数の和:4621499

約数の個数: 24

約数和(自身を含む): 1552818624

約数和(自身を除く): 905811004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4621483, 9242966, 18485932, 23107415, 32350381, 46214830, 64700762, 92429660, 129401524, 161751905, 323503810, 647007620]

約数ペア:

[(1, 647007620), (2, 323503810), (4, 161751905), (5, 129401524), (7, 92429660), (10, 64700762), (14, 46214830), (20, 32350381), (28, 23107415), (35, 18485932), (70, 9242966), (140, 4621483)]