18545920

素因数分解:

$2^8\times 5^1\times {\mathrm{14489}}^1$

素因数の和:14510

約数の個数: 36

約数和(自身を含む): 44426340

約数和(自身を除く): 25880420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 14489, 28978, 57956, 72445, 115912, 144890, 231824, 289780, 463648, 579560, 927296, 1159120, 1854592, 2318240, 3709184, 4636480, 9272960, 18545920]

約数ペア:

[(1, 18545920), (2, 9272960), (4, 4636480), (5, 3709184), (8, 2318240), (10, 1854592), (16, 1159120), (20, 927296), (32, 579560), (40, 463648), (64, 289780), (80, 231824), (128, 144890), (160, 115912), (256, 72445), (320, 57956), (640, 28978), (1280, 14489)]