20401400

素因数分解:

$2^3\times 5^2\times {\mathrm{83}}^1\times {\mathrm{1229}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 48043800

約数和(自身を除く): 27642400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 83, 100, 166, 200, 332, 415, 664, 830, 1229, 1660, 2075, 2458, 3320, 4150, 4916, 6145, 8300, 9832, 12290, 16600, 24580, 30725, 49160, 61450, 102007, 122900, 204014, 245800, 408028, 510035, 816056, 1020070, 2040140, 2550175, 4080280, 5100350, 10200700, 20401400]

約数ペア:

[(1, 20401400), (2, 10200700), (4, 5100350), (5, 4080280), (8, 2550175), (10, 2040140), (20, 1020070), (25, 816056), (40, 510035), (50, 408028), (83, 245800), (100, 204014), (166, 122900), (200, 102007), (332, 61450), (415, 49160), (664, 30725), (830, 24580), (1229, 16600), (1660, 12290), (2075, 9832), (2458, 8300), (3320, 6145), (4150, 4916)]