18475688

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 43804800

約数和(自身を除く): 25329112

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 89, 154, 178, 308, 337, 356, 616, 623, 674, 712, 979, 1246, 1348, 1958, 2359, 2492, 2696, 3707, 3916, 4718, 4984, 6853, 7414, 7832, 9436, 13706, 14828, 18872, 25949, 27412, 29656, 29993, 51898, 54824, 59986, 103796, 119972, 207592, 209951, 239944, 329923, 419902, 659846, 839804, 1319692, 1679608, 2309461, 2639384, 4618922, 9237844, 18475688]

約数ペア:

[(1, 18475688), (2, 9237844), (4, 4618922), (7, 2639384), (8, 2309461), (11, 1679608), (14, 1319692), (22, 839804), (28, 659846), (44, 419902), (56, 329923), (77, 239944), (88, 209951), (89, 207592), (154, 119972), (178, 103796), (308, 59986), (337, 54824), (356, 51898), (616, 29993), (623, 29656), (674, 27412), (712, 25949), (979, 18872), (1246, 14828), (1348, 13706), (1958, 9436), (2359, 7832), (2492, 7414), (2696, 6853), (3707, 4984), (3916, 4718)]