65989880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{3191}}^1$

素因数の和:3260

約数の個数: 64

約数和(自身を含む): 165473280

約数和(自身を除く): 99483400

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, 1880, 2068, 2585, 3191, 4136, 5170, 6382, 10340, 12764, 15955, 20680, 25528, 31910, 35101, 63820, 70202, 127640, 140404, 149977, 175505, 280808, 299954, 351010, 599908, 702020, 749885, 1199816, 1404040, 1499770, 1649747, 2999540, 3299494, 5999080, 6598988, 8248735, 13197976, 16497470, 32994940, 65989880]

約数ペア:

[(1, 65989880), (2, 32994940), (4, 16497470), (5, 13197976), (8, 8248735), (10, 6598988), (11, 5999080), (20, 3299494), (22, 2999540), (40, 1649747), (44, 1499770), (47, 1404040), (55, 1199816), (88, 749885), (94, 702020), (110, 599908), (188, 351010), (220, 299954), (235, 280808), (376, 175505), (440, 149977), (470, 140404), (517, 127640), (940, 70202), (1034, 63820), (1880, 35101), (2068, 31910), (2585, 25528), (3191, 20680), (4136, 15955), (5170, 12764), (6382, 10340)]