61990460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{442789}}^1$

素因数の和:442805

約数の個数: 24

約数和(自身を含む): 148777440

約数和(自身を除く): 86786980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 442789, 885578, 1771156, 2213945, 3099523, 4427890, 6199046, 8855780, 12398092, 15497615, 30995230, 61990460]

約数ペア:

[(1, 61990460), (2, 30995230), (4, 15497615), (5, 12398092), (7, 8855780), (10, 6199046), (14, 4427890), (20, 3099523), (28, 2213945), (35, 1771156), (70, 885578), (140, 442789)]