20971120

素因数分解:

$2^4\times 5^1\times {\mathrm{262139}}^1$

素因数の和:262152

約数の個数: 20

約数和(自身を含む): 48758040

約数和(自身を除く): 27786920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262139, 524278, 1048556, 1310695, 2097112, 2621390, 4194224, 5242780, 10485560, 20971120]

約数ペア:

[(1, 20971120), (2, 10485560), (4, 5242780), (5, 4194224), (8, 2621390), (10, 2097112), (16, 1310695), (20, 1048556), (40, 524278), (80, 262139)]