87665920

素因数分解:

$2^8\times 5^1\times {\mathrm{68489}}^1$

素因数の和:68510

約数の個数: 36

約数和(自身を含む): 209990340

約数和(自身を除く): 122324420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 68489, 136978, 273956, 342445, 547912, 684890, 1095824, 1369780, 2191648, 2739560, 4383296, 5479120, 8766592, 10958240, 17533184, 21916480, 43832960, 87665920]

約数ペア:

[(1, 87665920), (2, 43832960), (4, 21916480), (5, 17533184), (8, 10958240), (10, 8766592), (16, 5479120), (20, 4383296), (32, 2739560), (40, 2191648), (64, 1369780), (80, 1095824), (128, 684890), (160, 547912), (256, 342445), (320, 273956), (640, 136978), (1280, 68489)]