72689320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{165203}}^1$

素因数の和:165225

約数の個数: 32

約数和(自身を含む): 178420320

約数和(自身を除く): 105731000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 165203, 330406, 660812, 826015, 1321624, 1652030, 1817233, 3304060, 3634466, 6608120, 7268932, 9086165, 14537864, 18172330, 36344660, 72689320]

約数ペア:

[(1, 72689320), (2, 36344660), (4, 18172330), (5, 14537864), (8, 9086165), (10, 7268932), (11, 6608120), (20, 3634466), (22, 3304060), (40, 1817233), (44, 1652030), (55, 1321624), (88, 826015), (110, 660812), (220, 330406), (440, 165203)]