20436290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2131}}^1$

素因数の和:2282

約数の個数: 32

約数和(自身を含む): 42367104

約数和(自身を除く): 21930814

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 137, 274, 685, 959, 1370, 1918, 2131, 4262, 4795, 9590, 10655, 14917, 21310, 29834, 74585, 149170, 291947, 583894, 1459735, 2043629, 2919470, 4087258, 10218145, 20436290]

約数ペア:

[(1, 20436290), (2, 10218145), (5, 4087258), (7, 2919470), (10, 2043629), (14, 1459735), (35, 583894), (70, 291947), (137, 149170), (274, 74585), (685, 29834), (959, 21310), (1370, 14917), (1918, 10655), (2131, 9590), (4262, 4795)]