20702290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3323}}^1$

素因数の和:3426

約数の個数: 32

約数和(自身を含む): 43079040

約数和(自身を除く): 22376750

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 3323, 6230, 6646, 16615, 23261, 33230, 46522, 116305, 232610, 295747, 591494, 1478735, 2070229, 2957470, 4140458, 10351145, 20702290]

約数ペア:

[(1, 20702290), (2, 10351145), (5, 4140458), (7, 2957470), (10, 2070229), (14, 1478735), (35, 591494), (70, 295747), (89, 232610), (178, 116305), (445, 46522), (623, 33230), (890, 23261), (1246, 16615), (3115, 6646), (3323, 6230)]