18706820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3697}}^1$

素因数の和:3740

約数の個数: 48

約数和(自身を含む): 44731008

約数和(自身を除く): 26024188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 3697, 5060, 7394, 14788, 18485, 36970, 40667, 73940, 81334, 85031, 162668, 170062, 203335, 340124, 406670, 425155, 813340, 850310, 935341, 1700620, 1870682, 3741364, 4676705, 9353410, 18706820]

約数ペア:

[(1, 18706820), (2, 9353410), (4, 4676705), (5, 3741364), (10, 1870682), (11, 1700620), (20, 935341), (22, 850310), (23, 813340), (44, 425155), (46, 406670), (55, 340124), (92, 203335), (110, 170062), (115, 162668), (220, 85031), (230, 81334), (253, 73940), (460, 40667), (506, 36970), (1012, 18485), (1265, 14788), (2530, 7394), (3697, 5060)]