20614640

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2029}}^1$

素因数の和:2169

約数の個数: 40

約数和(自身を含む): 48330240

約数和(自身を除く): 27715600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2029, 2032, 2540, 4058, 5080, 8116, 10145, 10160, 16232, 20290, 32464, 40580, 81160, 162320, 257683, 515366, 1030732, 1288415, 2061464, 2576830, 4122928, 5153660, 10307320, 20614640]

約数ペア:

[(1, 20614640), (2, 10307320), (4, 5153660), (5, 4122928), (8, 2576830), (10, 2061464), (16, 1288415), (20, 1030732), (40, 515366), (80, 257683), (127, 162320), (254, 81160), (508, 40580), (635, 32464), (1016, 20290), (1270, 16232), (2029, 10160), (2032, 10145), (2540, 8116), (4058, 5080)]