19956040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38377}}^1$

素因数の和:38401

約数の個数: 32

約数和(自身を含む): 48356280

約数和(自身を除く): 28400240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38377, 76754, 153508, 191885, 307016, 383770, 498901, 767540, 997802, 1535080, 1995604, 2494505, 3991208, 4989010, 9978020, 19956040]

約数ペア:

[(1, 19956040), (2, 9978020), (4, 4989010), (5, 3991208), (8, 2494505), (10, 1995604), (13, 1535080), (20, 997802), (26, 767540), (40, 498901), (52, 383770), (65, 307016), (104, 191885), (130, 153508), (260, 76754), (520, 38377)]