72898480

素因数分解:

$2^4\times 5^1\times {\mathrm{911231}}^1$

素因数の和:911244

約数の個数: 20

約数和(自身を含む): 169489152

約数和(自身を除く): 96590672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 911231, 1822462, 3644924, 4556155, 7289848, 9112310, 14579696, 18224620, 36449240, 72898480]

約数ペア:

[(1, 72898480), (2, 36449240), (4, 18224620), (5, 14579696), (8, 9112310), (10, 7289848), (16, 4556155), (20, 3644924), (40, 1822462), (80, 911231)]