139649680

素因数分解:

$2^4\times 5^1\times {\mathrm{1745621}}^1$

素因数の和:1745634

約数の個数: 20

約数和(自身を含む): 324685692

約数和(自身を除く): 185036012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1745621, 3491242, 6982484, 8728105, 13964968, 17456210, 27929936, 34912420, 69824840, 139649680]

約数ペア:

[(1, 139649680), (2, 69824840), (4, 34912420), (5, 27929936), (8, 17456210), (10, 13964968), (16, 8728105), (20, 6982484), (40, 3491242), (80, 1745621)]