18875968

素因数分解:

$2^6\times {\mathrm{19}}^3\times {\mathrm{43}}^1$

素因数の和:112

約数の個数: 56

約数和(自身を含む): 40457120

約数和(自身を除く): 21581152

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 43, 64, 76, 86, 152, 172, 304, 344, 361, 608, 688, 722, 817, 1216, 1376, 1444, 1634, 2752, 2888, 3268, 5776, 6536, 6859, 11552, 13072, 13718, 15523, 23104, 26144, 27436, 31046, 52288, 54872, 62092, 109744, 124184, 219488, 248368, 294937, 438976, 496736, 589874, 993472, 1179748, 2359496, 4718992, 9437984, 18875968]

約数ペア:

[(1, 18875968), (2, 9437984), (4, 4718992), (8, 2359496), (16, 1179748), (19, 993472), (32, 589874), (38, 496736), (43, 438976), (64, 294937), (76, 248368), (86, 219488), (152, 124184), (172, 109744), (304, 62092), (344, 54872), (361, 52288), (608, 31046), (688, 27436), (722, 26144), (817, 23104), (1216, 15523), (1376, 13718), (1444, 13072), (1634, 11552), (2752, 6859), (2888, 6536), (3268, 5776)]