285780680

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{2141}}^1$

素因数の和:2270

約数の個数: 64

約数和(自身を含む): 666247680

約数和(自身を除く): 380467000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 71, 94, 142, 188, 235, 284, 355, 376, 470, 568, 710, 940, 1420, 1880, 2141, 2840, 3337, 4282, 6674, 8564, 10705, 13348, 16685, 17128, 21410, 26696, 33370, 42820, 66740, 85640, 100627, 133480, 152011, 201254, 304022, 402508, 503135, 608044, 760055, 805016, 1006270, 1216088, 1520110, 2012540, 3040220, 4025080, 6080440, 7144517, 14289034, 28578068, 35722585, 57156136, 71445170, 142890340, 285780680]

約数ペア:

[(1, 285780680), (2, 142890340), (4, 71445170), (5, 57156136), (8, 35722585), (10, 28578068), (20, 14289034), (40, 7144517), (47, 6080440), (71, 4025080), (94, 3040220), (142, 2012540), (188, 1520110), (235, 1216088), (284, 1006270), (355, 805016), (376, 760055), (470, 608044), (568, 503135), (710, 402508), (940, 304022), (1420, 201254), (1880, 152011), (2141, 133480), (2840, 100627), (3337, 85640), (4282, 66740), (6674, 42820), (8564, 33370), (10705, 26696), (13348, 21410), (16685, 17128)]