20545425

素因数分解:

$3^2\times 5^2\times {\mathrm{127}}^1\times {\mathrm{719}}^1$

素因数の和:862

約数の個数: 36

約数和(自身を含む): 37140480

約数和(自身を除く): 16595055

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 127, 225, 381, 635, 719, 1143, 1905, 2157, 3175, 3595, 5715, 6471, 9525, 10785, 17975, 28575, 32355, 53925, 91313, 161775, 273939, 456565, 821817, 1369695, 2282825, 4109085, 6848475, 20545425]

約数ペア:

[(1, 20545425), (3, 6848475), (5, 4109085), (9, 2282825), (15, 1369695), (25, 821817), (45, 456565), (75, 273939), (127, 161775), (225, 91313), (381, 53925), (635, 32355), (719, 28575), (1143, 17975), (1905, 10785), (2157, 9525), (3175, 6471), (3595, 5715)]