20204828

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 42981120

約数和(自身を除く): 22776292

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 163, 233, 266, 326, 466, 532, 652, 932, 1141, 1631, 2282, 3097, 3262, 4427, 4564, 6194, 6524, 8854, 12388, 17708, 21679, 30989, 37979, 43358, 61978, 75958, 86716, 123956, 151916, 265853, 531706, 721601, 1063412, 1443202, 2886404, 5051207, 10102414, 20204828]

約数ペア:

[(1, 20204828), (2, 10102414), (4, 5051207), (7, 2886404), (14, 1443202), (19, 1063412), (28, 721601), (38, 531706), (76, 265853), (133, 151916), (163, 123956), (233, 86716), (266, 75958), (326, 61978), (466, 43358), (532, 37979), (652, 30989), (932, 21679), (1141, 17708), (1631, 12388), (2282, 8854), (3097, 6524), (3262, 6194), (4427, 4564)]