20977460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149839}}^1$

素因数の和:149855

約数の個数: 24

約数和(自身を含む): 50346240

約数和(自身を除く): 29368780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149839, 299678, 599356, 749195, 1048873, 1498390, 2097746, 2996780, 4195492, 5244365, 10488730, 20977460]

約数ペア:

[(1, 20977460), (2, 10488730), (4, 5244365), (5, 4195492), (7, 2996780), (10, 2097746), (14, 1498390), (20, 1048873), (28, 749195), (35, 599356), (70, 299678), (140, 149839)]