655178220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{404431}}^1$

素因数の和:404452

約数の個数: 60

約数和(自身を含む): 2055323424

約数和(自身を除く): 1400145204

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 404431, 808862, 1213293, 1617724, 2022155, 2426586, 3639879, 4044310, 4853172, 6066465, 7279758, 8088620, 10919637, 12132930, 14559516, 18199395, 21839274, 24265860, 32758911, 36398790, 43678548, 54598185, 65517822, 72797580, 109196370, 131035644, 163794555, 218392740, 327589110, 655178220]

約数ペア:

[(1, 655178220), (2, 327589110), (3, 218392740), (4, 163794555), (5, 131035644), (6, 109196370), (9, 72797580), (10, 65517822), (12, 54598185), (15, 43678548), (18, 36398790), (20, 32758911), (27, 24265860), (30, 21839274), (36, 18199395), (45, 14559516), (54, 12132930), (60, 10919637), (81, 8088620), (90, 7279758), (108, 6066465), (135, 4853172), (162, 4044310), (180, 3639879), (270, 2426586), (324, 2022155), (405, 1617724), (540, 1213293), (810, 808862), (1620, 404431)]