71889680

素因数分解:

$2^4\times 5^1\times {\mathrm{898621}}^1$

素因数の和:898634

約数の個数: 20

約数和(自身を含む): 167143692

約数和(自身を除く): 95254012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 898621, 1797242, 3594484, 4493105, 7188968, 8986210, 14377936, 17972420, 35944840, 71889680]

約数ペア:

[(1, 71889680), (2, 35944840), (4, 17972420), (5, 14377936), (8, 8986210), (10, 7188968), (16, 4493105), (20, 3594484), (40, 1797242), (80, 898621)]