19696480

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{479}}^1$

素因数の和:751

約数の個数: 48

約数和(自身を含む): 46811520

約数和(自身を除く): 27115040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 479, 514, 958, 1028, 1285, 1916, 2056, 2395, 2570, 3832, 4112, 4790, 5140, 7664, 8224, 9580, 10280, 15328, 19160, 20560, 38320, 41120, 76640, 123103, 246206, 492412, 615515, 984824, 1231030, 1969648, 2462060, 3939296, 4924120, 9848240, 19696480]

約数ペア:

[(1, 19696480), (2, 9848240), (4, 4924120), (5, 3939296), (8, 2462060), (10, 1969648), (16, 1231030), (20, 984824), (32, 615515), (40, 492412), (80, 246206), (160, 123103), (257, 76640), (479, 41120), (514, 38320), (958, 20560), (1028, 19160), (1285, 15328), (1916, 10280), (2056, 9580), (2395, 8224), (2570, 7664), (3832, 5140), (4112, 4790)]