38720820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{645347}}^1$

素因数の和:645359

約数の個数: 24

約数和(自身を含む): 108418464

約数和(自身を除く): 69697644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 645347, 1290694, 1936041, 2581388, 3226735, 3872082, 6453470, 7744164, 9680205, 12906940, 19360410, 38720820]

約数ペア:

[(1, 38720820), (2, 19360410), (3, 12906940), (4, 9680205), (5, 7744164), (6, 6453470), (10, 3872082), (12, 3226735), (15, 2581388), (20, 1936041), (30, 1290694), (60, 645347)]