19967856

素因数分解:

$2^4\times 3^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 53996544

約数和(自身を除く): 34028688

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 47, 48, 53, 94, 106, 141, 159, 167, 188, 212, 282, 318, 334, 376, 424, 501, 564, 636, 668, 752, 848, 1002, 1128, 1272, 1336, 2004, 2256, 2491, 2544, 2672, 4008, 4982, 7473, 7849, 8016, 8851, 9964, 14946, 15698, 17702, 19928, 23547, 26553, 29892, 31396, 35404, 39856, 47094, 53106, 59784, 62792, 70808, 94188, 106212, 119568, 125584, 141616, 188376, 212424, 376752, 415997, 424848, 831994, 1247991, 1663988, 2495982, 3327976, 4991964, 6655952, 9983928, 19967856]

約数ペア:

[(1, 19967856), (2, 9983928), (3, 6655952), (4, 4991964), (6, 3327976), (8, 2495982), (12, 1663988), (16, 1247991), (24, 831994), (47, 424848), (48, 415997), (53, 376752), (94, 212424), (106, 188376), (141, 141616), (159, 125584), (167, 119568), (188, 106212), (212, 94188), (282, 70808), (318, 62792), (334, 59784), (376, 53106), (424, 47094), (501, 39856), (564, 35404), (636, 31396), (668, 29892), (752, 26553), (848, 23547), (1002, 19928), (1128, 17702), (1272, 15698), (1336, 14946), (2004, 9964), (2256, 8851), (2491, 8016), (2544, 7849), (2672, 7473), (4008, 4982)]