18980416

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3259}}^1$

素因数の和:3291

約数の個数: 56

約数和(自身を含む): 46370240

約数和(自身を除く): 27389824

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 182, 208, 224, 364, 416, 448, 728, 832, 1456, 2912, 3259, 5824, 6518, 13036, 22813, 26072, 42367, 45626, 52144, 84734, 91252, 104288, 169468, 182504, 208576, 296569, 338936, 365008, 593138, 677872, 730016, 1186276, 1355744, 1460032, 2372552, 2711488, 4745104, 9490208, 18980416]

約数ペア:

[(1, 18980416), (2, 9490208), (4, 4745104), (7, 2711488), (8, 2372552), (13, 1460032), (14, 1355744), (16, 1186276), (26, 730016), (28, 677872), (32, 593138), (52, 365008), (56, 338936), (64, 296569), (91, 208576), (104, 182504), (112, 169468), (182, 104288), (208, 91252), (224, 84734), (364, 52144), (416, 45626), (448, 42367), (728, 26072), (832, 22813), (1456, 13036), (2912, 6518), (3259, 5824)]