18780760

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3697}}^1$

素因数の和:3835

約数の個数: 32

約数和(自身を含む): 42600960

約数和(自身を除く): 23820200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3697, 5080, 7394, 14788, 18485, 29576, 36970, 73940, 147880, 469519, 939038, 1878076, 2347595, 3756152, 4695190, 9390380, 18780760]

約数ペア:

[(1, 18780760), (2, 9390380), (4, 4695190), (5, 3756152), (8, 2347595), (10, 1878076), (20, 939038), (40, 469519), (127, 147880), (254, 73940), (508, 36970), (635, 29576), (1016, 18485), (1270, 14788), (2540, 7394), (3697, 5080)]