13990940

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 30536352

約数和(自身を除く): 16545412

約数列:

[1, 2, 4, 5, 10, 20, 53, 67, 106, 134, 197, 212, 265, 268, 335, 394, 530, 670, 788, 985, 1060, 1340, 1970, 3551, 3940, 7102, 10441, 13199, 14204, 17755, 20882, 26398, 35510, 41764, 52205, 52796, 65995, 71020, 104410, 131990, 208820, 263980, 699547, 1399094, 2798188, 3497735, 6995470, 13990940]

約数ペア:

[(1, 13990940), (2, 6995470), (4, 3497735), (5, 2798188), (10, 1399094), (20, 699547), (53, 263980), (67, 208820), (106, 131990), (134, 104410), (197, 71020), (212, 65995), (265, 52796), (268, 52205), (335, 41764), (394, 35510), (530, 26398), (670, 20882), (788, 17755), (985, 14204), (1060, 13199), (1340, 10441), (1970, 7102), (3551, 3940)]