901180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 2229696

約数和(自身を除く): 1328516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 157, 164, 205, 287, 314, 410, 574, 628, 785, 820, 1099, 1148, 1435, 1570, 2198, 2870, 3140, 4396, 5495, 5740, 6437, 10990, 12874, 21980, 25748, 32185, 45059, 64370, 90118, 128740, 180236, 225295, 450590, 901180]

約数ペア:

[(1, 901180), (2, 450590), (4, 225295), (5, 180236), (7, 128740), (10, 90118), (14, 64370), (20, 45059), (28, 32185), (35, 25748), (41, 21980), (70, 12874), (82, 10990), (140, 6437), (157, 5740), (164, 5495), (205, 4396), (287, 3140), (314, 2870), (410, 2198), (574, 1570), (628, 1435), (785, 1148), (820, 1099)]