31345444

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:640

約数の個数: 36

約数和(自身を含む): 60181380

約数和(自身を除く): 28835936

約数列:

[1, 2, 4, 13, 26, 52, 89, 169, 178, 338, 356, 521, 676, 1042, 1157, 2084, 2314, 4628, 6773, 13546, 15041, 27092, 30082, 46369, 60164, 88049, 92738, 176098, 185476, 352196, 602797, 1205594, 2411188, 7836361, 15672722, 31345444]

約数ペア:

[(1, 31345444), (2, 15672722), (4, 7836361), (13, 2411188), (26, 1205594), (52, 602797), (89, 352196), (169, 185476), (178, 176098), (338, 92738), (356, 88049), (521, 60164), (676, 46369), (1042, 30082), (1157, 27092), (2084, 15041), (2314, 13546), (4628, 6773)]