218971700

素因数分解:

$2^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{35897}}^1$

素因数の和:35972

約数の個数: 36

約数和(自身を含む): 482971692

約数和(自身を除く): 263999992

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 61, 100, 122, 244, 305, 610, 1220, 1525, 3050, 6100, 35897, 71794, 143588, 179485, 358970, 717940, 897425, 1794850, 2189717, 3589700, 4379434, 8758868, 10948585, 21897170, 43794340, 54742925, 109485850, 218971700]

約数ペア:

[(1, 218971700), (2, 109485850), (4, 54742925), (5, 43794340), (10, 21897170), (20, 10948585), (25, 8758868), (50, 4379434), (61, 3589700), (100, 2189717), (122, 1794850), (244, 897425), (305, 717940), (610, 358970), (1220, 179485), (1525, 143588), (3050, 71794), (6100, 35897)]