90531280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3943}}^1$

素因数の和:4004

約数の個数: 80

約数和(自身を含む): 246484224

約数和(自身を除く): 155952944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 1148, 1435, 1640, 2296, 2870, 3280, 3943, 4592, 5740, 7886, 11480, 15772, 19715, 22960, 27601, 31544, 39430, 55202, 63088, 78860, 110404, 138005, 157720, 161663, 220808, 276010, 315440, 323326, 441616, 552020, 646652, 808315, 1104040, 1131641, 1293304, 1616630, 2208080, 2263282, 2586608, 3233260, 4526564, 5658205, 6466520, 9053128, 11316410, 12933040, 18106256, 22632820, 45265640, 90531280]

約数ペア:

[(1, 90531280), (2, 45265640), (4, 22632820), (5, 18106256), (7, 12933040), (8, 11316410), (10, 9053128), (14, 6466520), (16, 5658205), (20, 4526564), (28, 3233260), (35, 2586608), (40, 2263282), (41, 2208080), (56, 1616630), (70, 1293304), (80, 1131641), (82, 1104040), (112, 808315), (140, 646652), (164, 552020), (205, 441616), (280, 323326), (287, 315440), (328, 276010), (410, 220808), (560, 161663), (574, 157720), (656, 138005), (820, 110404), (1148, 78860), (1435, 63088), (1640, 55202), (2296, 39430), (2870, 31544), (3280, 27601), (3943, 22960), (4592, 19715), (5740, 15772), (7886, 11480)]