81501020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{1693}}^1$

素因数の和:1814

約数の個数: 48

約数和(自身を含む): 179292960

約数和(自身を除く): 97791940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 83, 116, 145, 166, 290, 332, 415, 580, 830, 1660, 1693, 2407, 3386, 4814, 6772, 8465, 9628, 12035, 16930, 24070, 33860, 48140, 49097, 98194, 140519, 196388, 245485, 281038, 490970, 562076, 702595, 981940, 1405190, 2810380, 4075051, 8150102, 16300204, 20375255, 40750510, 81501020]

約数ペア:

[(1, 81501020), (2, 40750510), (4, 20375255), (5, 16300204), (10, 8150102), (20, 4075051), (29, 2810380), (58, 1405190), (83, 981940), (116, 702595), (145, 562076), (166, 490970), (290, 281038), (332, 245485), (415, 196388), (580, 140519), (830, 98194), (1660, 49097), (1693, 48140), (2407, 33860), (3386, 24070), (4814, 16930), (6772, 12035), (8465, 9628)]