18369280

素因数分解:

$2^8\times 5^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 44739072

約数和(自身を除く): 26369792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 127, 128, 160, 226, 254, 256, 320, 452, 508, 565, 635, 640, 904, 1016, 1130, 1270, 1280, 1808, 2032, 2260, 2540, 3616, 4064, 4520, 5080, 7232, 8128, 9040, 10160, 14351, 14464, 16256, 18080, 20320, 28702, 28928, 32512, 36160, 40640, 57404, 71755, 72320, 81280, 114808, 143510, 144640, 162560, 229616, 287020, 459232, 574040, 918464, 1148080, 1836928, 2296160, 3673856, 4592320, 9184640, 18369280]

約数ペア:

[(1, 18369280), (2, 9184640), (4, 4592320), (5, 3673856), (8, 2296160), (10, 1836928), (16, 1148080), (20, 918464), (32, 574040), (40, 459232), (64, 287020), (80, 229616), (113, 162560), (127, 144640), (128, 143510), (160, 114808), (226, 81280), (254, 72320), (256, 71755), (320, 57404), (452, 40640), (508, 36160), (565, 32512), (635, 28928), (640, 28702), (904, 20320), (1016, 18080), (1130, 16256), (1270, 14464), (1280, 14351), (1808, 10160), (2032, 9040), (2260, 8128), (2540, 7232), (3616, 5080), (4064, 4520)]