40004006

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2549}}^1$

素因数の和:2636

約数の個数: 32

約数和(自身を含む): 73440000

約数和(自身を除く): 33435994

約数列:

[1, 2, 7, 14, 19, 38, 59, 118, 133, 266, 413, 826, 1121, 2242, 2549, 5098, 7847, 15694, 17843, 35686, 48431, 96862, 150391, 300782, 339017, 678034, 1052737, 2105474, 2857429, 5714858, 20002003, 40004006]

約数ペア:

[(1, 40004006), (2, 20002003), (7, 5714858), (14, 2857429), (19, 2105474), (38, 1052737), (59, 678034), (118, 339017), (133, 300782), (266, 150391), (413, 96862), (826, 48431), (1121, 35686), (2242, 17843), (2549, 15694), (5098, 7847)]