81107656

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2459}}^1$

素因数の和:2522

約数の個数: 64

約数和(自身を含む): 188928000

約数和(自身を除く): 107820344

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 56, 62, 76, 124, 133, 152, 217, 248, 266, 434, 532, 589, 868, 1064, 1178, 1736, 2356, 2459, 4123, 4712, 4918, 8246, 9836, 16492, 17213, 19672, 32984, 34426, 46721, 68852, 76229, 93442, 137704, 152458, 186884, 304916, 327047, 373768, 533603, 609832, 654094, 1067206, 1308188, 1448351, 2134412, 2616376, 2896702, 4268824, 5793404, 10138457, 11586808, 20276914, 40553828, 81107656]

約数ペア:

[(1, 81107656), (2, 40553828), (4, 20276914), (7, 11586808), (8, 10138457), (14, 5793404), (19, 4268824), (28, 2896702), (31, 2616376), (38, 2134412), (56, 1448351), (62, 1308188), (76, 1067206), (124, 654094), (133, 609832), (152, 533603), (217, 373768), (248, 327047), (266, 304916), (434, 186884), (532, 152458), (589, 137704), (868, 93442), (1064, 76229), (1178, 68852), (1736, 46721), (2356, 34426), (2459, 32984), (4123, 19672), (4712, 17213), (4918, 16492), (8246, 9836)]