40091996

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:199

約数の個数: 72

約数和(自身を含む): 85954176

約数和(自身を除く): 45862180

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 67, 71, 86, 98, 134, 142, 172, 196, 268, 284, 301, 469, 497, 602, 938, 994, 1204, 1876, 1988, 2107, 2881, 3053, 3283, 3479, 4214, 4757, 5762, 6106, 6566, 6958, 8428, 9514, 11524, 12212, 13132, 13916, 19028, 20167, 21371, 33299, 40334, 42742, 66598, 80668, 85484, 133196, 141169, 149597, 204551, 233093, 282338, 299194, 409102, 466186, 564676, 598388, 818204, 932372, 1431857, 2863714, 5727428, 10022999, 20045998, 40091996]

約数ペア:

[(1, 40091996), (2, 20045998), (4, 10022999), (7, 5727428), (14, 2863714), (28, 1431857), (43, 932372), (49, 818204), (67, 598388), (71, 564676), (86, 466186), (98, 409102), (134, 299194), (142, 282338), (172, 233093), (196, 204551), (268, 149597), (284, 141169), (301, 133196), (469, 85484), (497, 80668), (602, 66598), (938, 42742), (994, 40334), (1204, 33299), (1876, 21371), (1988, 20167), (2107, 19028), (2881, 13916), (3053, 13132), (3283, 12212), (3479, 11524), (4214, 9514), (4757, 8428), (5762, 6958), (6106, 6566)]