15969680

素因数分解:

$2^4\times 5^1\times {\mathrm{199621}}^1$

素因数の和:199634

約数の個数: 20

約数和(自身を含む): 37129692

約数和(自身を除く): 21160012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199621, 399242, 798484, 998105, 1596968, 1996210, 3193936, 3992420, 7984840, 15969680]

約数ペア:

[(1, 15969680), (2, 7984840), (4, 3992420), (5, 3193936), (8, 1996210), (10, 1596968), (16, 998105), (20, 798484), (40, 399242), (80, 199621)]