28902280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65687}}^1$

素因数の和:65709

約数の個数: 32

約数和(自身を含む): 70943040

約数和(自身を除く): 42040760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65687, 131374, 262748, 328435, 525496, 656870, 722557, 1313740, 1445114, 2627480, 2890228, 3612785, 5780456, 7225570, 14451140, 28902280]

約数ペア:

[(1, 28902280), (2, 14451140), (4, 7225570), (5, 5780456), (8, 3612785), (10, 2890228), (11, 2627480), (20, 1445114), (22, 1313740), (40, 722557), (44, 656870), (55, 525496), (88, 328435), (110, 262748), (220, 131374), (440, 65687)]