72897520

素因数分解:

$2^4\times 5^1\times {\mathrm{911219}}^1$

素因数の和:911232

約数の個数: 20

約数和(自身を含む): 169486920

約数和(自身を除く): 96589400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 911219, 1822438, 3644876, 4556095, 7289752, 9112190, 14579504, 18224380, 36448760, 72897520]

約数ペア:

[(1, 72897520), (2, 36448760), (4, 18224380), (5, 14579504), (8, 9112190), (10, 7289752), (16, 4556095), (20, 3644876), (40, 1822438), (80, 911219)]