28308784

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:338

約数の個数: 80

約数和(自身を含む): 67495680

約数和(自身を除く): 39186896

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 53, 56, 76, 106, 112, 133, 152, 212, 251, 266, 304, 371, 424, 502, 532, 742, 848, 1004, 1007, 1064, 1484, 1757, 2008, 2014, 2128, 2968, 3514, 4016, 4028, 4769, 5936, 7028, 7049, 8056, 9538, 13303, 14056, 14098, 16112, 19076, 26606, 28112, 28196, 33383, 38152, 53212, 56392, 66766, 76304, 93121, 106424, 112784, 133532, 186242, 212848, 252757, 267064, 372484, 505514, 534128, 744968, 1011028, 1489936, 1769299, 2022056, 3538598, 4044112, 7077196, 14154392, 28308784]

約数ペア:

[(1, 28308784), (2, 14154392), (4, 7077196), (7, 4044112), (8, 3538598), (14, 2022056), (16, 1769299), (19, 1489936), (28, 1011028), (38, 744968), (53, 534128), (56, 505514), (76, 372484), (106, 267064), (112, 252757), (133, 212848), (152, 186242), (212, 133532), (251, 112784), (266, 106424), (304, 93121), (371, 76304), (424, 66766), (502, 56392), (532, 53212), (742, 38152), (848, 33383), (1004, 28196), (1007, 28112), (1064, 26606), (1484, 19076), (1757, 16112), (2008, 14098), (2014, 14056), (2128, 13303), (2968, 9538), (3514, 8056), (4016, 7049), (4028, 7028), (4769, 5936)]