81619456

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:309

約数の個数: 80

約数和(自身を含む): 176774400

約数和(自身を除く): 95154944

約数列:

[1, 2, 4, 8, 16, 23, 29, 32, 46, 58, 64, 92, 116, 128, 184, 232, 239, 256, 368, 464, 478, 512, 667, 736, 928, 956, 1334, 1472, 1856, 1912, 2668, 2944, 3712, 3824, 5336, 5497, 5888, 6931, 7424, 7648, 10672, 10994, 11776, 13862, 14848, 15296, 21344, 21988, 27724, 30592, 42688, 43976, 55448, 61184, 85376, 87952, 110896, 122368, 159413, 170752, 175904, 221792, 318826, 341504, 351808, 443584, 637652, 703616, 887168, 1275304, 1407232, 1774336, 2550608, 2814464, 3548672, 5101216, 10202432, 20404864, 40809728, 81619456]

約数ペア:

[(1, 81619456), (2, 40809728), (4, 20404864), (8, 10202432), (16, 5101216), (23, 3548672), (29, 2814464), (32, 2550608), (46, 1774336), (58, 1407232), (64, 1275304), (92, 887168), (116, 703616), (128, 637652), (184, 443584), (232, 351808), (239, 341504), (256, 318826), (368, 221792), (464, 175904), (478, 170752), (512, 159413), (667, 122368), (736, 110896), (928, 87952), (956, 85376), (1334, 61184), (1472, 55448), (1856, 43976), (1912, 42688), (2668, 30592), (2944, 27724), (3712, 21988), (3824, 21344), (5336, 15296), (5497, 14848), (5888, 13862), (6931, 11776), (7424, 10994), (7648, 10672)]