201621680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{8429}}^1$

素因数の和:8478

約数の個数: 80

約数和(自身を含む): 526841280

約数和(自身を除く): 325219600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 40, 46, 52, 65, 80, 92, 104, 115, 130, 184, 208, 230, 260, 299, 368, 460, 520, 598, 920, 1040, 1196, 1495, 1840, 2392, 2990, 4784, 5980, 8429, 11960, 16858, 23920, 33716, 42145, 67432, 84290, 109577, 134864, 168580, 193867, 219154, 337160, 387734, 438308, 547885, 674320, 775468, 876616, 969335, 1095770, 1550936, 1753232, 1938670, 2191540, 2520271, 3101872, 3877340, 4383080, 5040542, 7754680, 8766160, 10081084, 12601355, 15509360, 20162168, 25202710, 40324336, 50405420, 100810840, 201621680]

約数ペア:

[(1, 201621680), (2, 100810840), (4, 50405420), (5, 40324336), (8, 25202710), (10, 20162168), (13, 15509360), (16, 12601355), (20, 10081084), (23, 8766160), (26, 7754680), (40, 5040542), (46, 4383080), (52, 3877340), (65, 3101872), (80, 2520271), (92, 2191540), (104, 1938670), (115, 1753232), (130, 1550936), (184, 1095770), (208, 969335), (230, 876616), (260, 775468), (299, 674320), (368, 547885), (460, 438308), (520, 387734), (598, 337160), (920, 219154), (1040, 193867), (1196, 168580), (1495, 134864), (1840, 109577), (2392, 84290), (2990, 67432), (4784, 42145), (5980, 33716), (8429, 23920), (11960, 16858)]