72887320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{165653}}^1$

素因数の和:165675

約数の個数: 32

約数和(自身を含む): 178906320

約数和(自身を除く): 106019000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 165653, 331306, 662612, 828265, 1325224, 1656530, 1822183, 3313060, 3644366, 6626120, 7288732, 9110915, 14577464, 18221830, 36443660, 72887320]

約数ペア:

[(1, 72887320), (2, 36443660), (4, 18221830), (5, 14577464), (8, 9110915), (10, 7288732), (11, 6626120), (20, 3644366), (22, 3313060), (40, 1822183), (44, 1656530), (55, 1325224), (88, 828265), (110, 662612), (220, 331306), (440, 165653)]