28559080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1381}}^1$

素因数の和:1450

約数の個数: 64

約数和(自身を含む): 71642880

約数和(自身を除く): 43083800

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 1034, 1381, 1880, 2068, 2585, 2762, 4136, 5170, 5524, 6905, 10340, 11048, 13810, 15191, 20680, 27620, 30382, 55240, 60764, 64907, 75955, 121528, 129814, 151910, 259628, 303820, 324535, 519256, 607640, 649070, 713977, 1298140, 1427954, 2596280, 2855908, 3569885, 5711816, 7139770, 14279540, 28559080]

約数ペア:

[(1, 28559080), (2, 14279540), (4, 7139770), (5, 5711816), (8, 3569885), (10, 2855908), (11, 2596280), (20, 1427954), (22, 1298140), (40, 713977), (44, 649070), (47, 607640), (55, 519256), (88, 324535), (94, 303820), (110, 259628), (188, 151910), (220, 129814), (235, 121528), (376, 75955), (440, 64907), (470, 60764), (517, 55240), (940, 30382), (1034, 27620), (1381, 20680), (1880, 15191), (2068, 13810), (2585, 11048), (2762, 10340), (4136, 6905), (5170, 5524)]