18880700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{8209}}^1$

素因数の和:8246

約数の個数: 36

約数和(自身を含む): 42757680

約数和(自身を除く): 23876980

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 230, 460, 575, 1150, 2300, 8209, 16418, 32836, 41045, 82090, 164180, 188807, 205225, 377614, 410450, 755228, 820900, 944035, 1888070, 3776140, 4720175, 9440350, 18880700]

約数ペア:

[(1, 18880700), (2, 9440350), (4, 4720175), (5, 3776140), (10, 1888070), (20, 944035), (23, 820900), (25, 755228), (46, 410450), (50, 377614), (92, 205225), (100, 188807), (115, 164180), (230, 82090), (460, 41045), (575, 32836), (1150, 16418), (2300, 8209)]