20880784

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{27767}}^1$

素因数の和:27822

約数の個数: 20

約数和(自身を含む): 41318784

約数和(自身を除く): 20438000

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 27767, 55534, 111068, 222136, 444272, 1305049, 2610098, 5220196, 10440392, 20880784]

約数ペア:

[(1, 20880784), (2, 10440392), (4, 5220196), (8, 2610098), (16, 1305049), (47, 444272), (94, 222136), (188, 111068), (376, 55534), (752, 27767)]