20428096

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{571}}^1$

素因数の和:639

約数の個数: 56

約数和(自身を含む): 44748704

約数和(自身を除く): 24320608

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 172, 208, 344, 416, 559, 571, 688, 832, 1118, 1142, 1376, 2236, 2284, 2752, 4472, 4568, 7423, 8944, 9136, 14846, 17888, 18272, 24553, 29692, 35776, 36544, 49106, 59384, 98212, 118768, 196424, 237536, 319189, 392848, 475072, 638378, 785696, 1276756, 1571392, 2553512, 5107024, 10214048, 20428096]

約数ペア:

[(1, 20428096), (2, 10214048), (4, 5107024), (8, 2553512), (13, 1571392), (16, 1276756), (26, 785696), (32, 638378), (43, 475072), (52, 392848), (64, 319189), (86, 237536), (104, 196424), (172, 118768), (208, 98212), (344, 59384), (416, 49106), (559, 36544), (571, 35776), (688, 29692), (832, 24553), (1118, 18272), (1142, 17888), (1376, 14846), (2236, 9136), (2284, 8944), (2752, 7423), (4472, 4568)]