18387712

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:385

約数の個数: 72

約数和(自身を含む): 43430912

約数和(自身を除く): 25043200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 331, 434, 448, 496, 662, 868, 896, 992, 1324, 1736, 1792, 1984, 2317, 2648, 3472, 3968, 4634, 5296, 6944, 7936, 9268, 10261, 10592, 13888, 18536, 20522, 21184, 27776, 37072, 41044, 42368, 55552, 71827, 74144, 82088, 84736, 143654, 148288, 164176, 287308, 296576, 328352, 574616, 593152, 656704, 1149232, 1313408, 2298464, 2626816, 4596928, 9193856, 18387712]

約数ペア:

[(1, 18387712), (2, 9193856), (4, 4596928), (7, 2626816), (8, 2298464), (14, 1313408), (16, 1149232), (28, 656704), (31, 593152), (32, 574616), (56, 328352), (62, 296576), (64, 287308), (112, 164176), (124, 148288), (128, 143654), (217, 84736), (224, 82088), (248, 74144), (256, 71827), (331, 55552), (434, 42368), (448, 41044), (496, 37072), (662, 27776), (868, 21184), (896, 20522), (992, 18536), (1324, 13888), (1736, 10592), (1792, 10261), (1984, 9268), (2317, 7936), (2648, 6944), (3472, 5296), (3968, 4634)]