640801630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{9154309}}^1$

素因数の和:9154323

約数の個数: 16

約数和(自身を含む): 1318220640

約数和(自身を除く): 677419010

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 9154309, 18308618, 45771545, 64080163, 91543090, 128160326, 320400815, 640801630]

約数ペア:

[(1, 640801630), (2, 320400815), (5, 128160326), (7, 91543090), (10, 64080163), (14, 45771545), (35, 18308618), (70, 9154309)]