20257432

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1787}}^1$

素因数の和:1915

約数の個数: 32

約数和(自身を含む): 41302800

約数和(自身を除く): 21045368

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 109, 218, 436, 872, 1417, 1787, 2834, 3574, 5668, 7148, 11336, 14296, 23231, 46462, 92924, 185848, 194783, 389566, 779132, 1558264, 2532179, 5064358, 10128716, 20257432]

約数ペア:

[(1, 20257432), (2, 10128716), (4, 5064358), (8, 2532179), (13, 1558264), (26, 779132), (52, 389566), (104, 194783), (109, 185848), (218, 92924), (436, 46462), (872, 23231), (1417, 14296), (1787, 11336), (2834, 7148), (3574, 5668)]