78704740

素因数分解:

$2^2\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{3607}}^1$

素因数の和:4707

約数の個数: 24

約数和(自身を含む): 165477312

約数和(自身を除く): 86772572

約数列:

[1, 2, 4, 5, 10, 20, 1091, 2182, 3607, 4364, 5455, 7214, 10910, 14428, 18035, 21820, 36070, 72140, 3935237, 7870474, 15740948, 19676185, 39352370, 78704740]

約数ペア:

[(1, 78704740), (2, 39352370), (4, 19676185), (5, 15740948), (10, 7870474), (20, 3935237), (1091, 72140), (2182, 36070), (3607, 21820), (4364, 18035), (5455, 14428), (7214, 10910)]