20002790

素因数分解:

$2^1\times 5^1\times {\mathrm{461}}^1\times {\mathrm{4339}}^1$

素因数の和:4807

約数の個数: 16

約数和(自身を含む): 36091440

約数和(自身を除く): 16088650

約数列:

[1, 2, 5, 10, 461, 922, 2305, 4339, 4610, 8678, 21695, 43390, 2000279, 4000558, 10001395, 20002790]

約数ペア:

[(1, 20002790), (2, 10001395), (5, 4000558), (10, 2000279), (461, 43390), (922, 21695), (2305, 8678), (4339, 4610)]