78061660

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{54973}}^1$

素因数の和:55053

約数の個数: 24

約数和(自身を含む): 166241376

約数和(自身を除く): 88179716

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 54973, 109946, 219892, 274865, 549730, 1099460, 3903083, 7806166, 15612332, 19515415, 39030830, 78061660]

約数ペア:

[(1, 78061660), (2, 39030830), (4, 19515415), (5, 15612332), (10, 7806166), (20, 3903083), (71, 1099460), (142, 549730), (284, 274865), (355, 219892), (710, 109946), (1420, 54973)]