20025616

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2239}}^1$

素因数の和:2303

約数の個数: 40

約数和(自身を含む): 42775040

約数和(自身を除く): 22749424

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2236, 2239, 4472, 4478, 8944, 8956, 17912, 29107, 35824, 58214, 96277, 116428, 192554, 232856, 385108, 465712, 770216, 1251601, 1540432, 2503202, 5006404, 10012808, 20025616]

約数ペア:

[(1, 20025616), (2, 10012808), (4, 5006404), (8, 2503202), (13, 1540432), (16, 1251601), (26, 770216), (43, 465712), (52, 385108), (86, 232856), (104, 192554), (172, 116428), (208, 96277), (344, 58214), (559, 35824), (688, 29107), (1118, 17912), (2236, 8956), (2239, 8944), (4472, 4478)]