19101680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18367}}^1$

素因数の和:18393

約数の個数: 40

約数和(自身を含む): 47830272

約数和(自身を除く): 28728592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18367, 36734, 73468, 91835, 146936, 183670, 238771, 293872, 367340, 477542, 734680, 955084, 1193855, 1469360, 1910168, 2387710, 3820336, 4775420, 9550840, 19101680]

約数ペア:

[(1, 19101680), (2, 9550840), (4, 4775420), (5, 3820336), (8, 2387710), (10, 1910168), (13, 1469360), (16, 1193855), (20, 955084), (26, 734680), (40, 477542), (52, 367340), (65, 293872), (80, 238771), (104, 183670), (130, 146936), (208, 91835), (260, 73468), (520, 36734), (1040, 18367)]