87840760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{313717}}^1$

素因数の和:313735

約数の個数: 32

約数和(自身を含む): 225876960

約数和(自身を除く): 138036200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 313717, 627434, 1254868, 1568585, 2196019, 2509736, 3137170, 4392038, 6274340, 8784076, 10980095, 12548680, 17568152, 21960190, 43920380, 87840760]

約数ペア:

[(1, 87840760), (2, 43920380), (4, 21960190), (5, 17568152), (7, 12548680), (8, 10980095), (10, 8784076), (14, 6274340), (20, 4392038), (28, 3137170), (35, 2509736), (40, 2196019), (56, 1568585), (70, 1254868), (140, 627434), (280, 313717)]