15990856

素因数分解:

$2^3\times 7^2\times {\mathrm{19}}^2\times {\mathrm{113}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 37136070

約数和(自身を除く): 21145214

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 113, 133, 152, 196, 226, 266, 361, 392, 452, 532, 722, 791, 904, 931, 1064, 1444, 1582, 1862, 2147, 2527, 2888, 3164, 3724, 4294, 5054, 5537, 6328, 7448, 8588, 10108, 11074, 15029, 17176, 17689, 20216, 22148, 30058, 35378, 40793, 44296, 60116, 70756, 81586, 105203, 120232, 141512, 163172, 210406, 285551, 326344, 420812, 571102, 841624, 1142204, 1998857, 2284408, 3997714, 7995428, 15990856]

約数ペア:

[(1, 15990856), (2, 7995428), (4, 3997714), (7, 2284408), (8, 1998857), (14, 1142204), (19, 841624), (28, 571102), (38, 420812), (49, 326344), (56, 285551), (76, 210406), (98, 163172), (113, 141512), (133, 120232), (152, 105203), (196, 81586), (226, 70756), (266, 60116), (361, 44296), (392, 40793), (452, 35378), (532, 30058), (722, 22148), (791, 20216), (904, 17689), (931, 17176), (1064, 15029), (1444, 11074), (1582, 10108), (1862, 8588), (2147, 7448), (2527, 6328), (2888, 5537), (3164, 5054), (3724, 4294)]