21916480

素因数分解:

$2^6\times 5^1\times {\mathrm{68489}}^1$

素因数の和:68506

約数の個数: 28

約数和(自身を含む): 52189380

約数和(自身を除く): 30272900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 68489, 136978, 273956, 342445, 547912, 684890, 1095824, 1369780, 2191648, 2739560, 4383296, 5479120, 10958240, 21916480]

約数ペア:

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