18430748

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 38191104

約数和(自身を除く): 19760356

約数列:

[1, 2, 4, 7, 14, 28, 71, 73, 127, 142, 146, 254, 284, 292, 497, 508, 511, 889, 994, 1022, 1778, 1988, 2044, 3556, 5183, 9017, 9271, 10366, 18034, 18542, 20732, 36068, 36281, 37084, 63119, 64897, 72562, 126238, 129794, 145124, 252476, 259588, 658241, 1316482, 2632964, 4607687, 9215374, 18430748]

約数ペア:

[(1, 18430748), (2, 9215374), (4, 4607687), (7, 2632964), (14, 1316482), (28, 658241), (71, 259588), (73, 252476), (127, 145124), (142, 129794), (146, 126238), (254, 72562), (284, 64897), (292, 63119), (497, 37084), (508, 36281), (511, 36068), (889, 20732), (994, 18542), (1022, 18034), (1778, 10366), (1988, 9271), (2044, 9017), (3556, 5183)]