16521040

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2129}}^1$

素因数の和:2239

約数の個数: 40

約数和(自身を含む): 38825640

約数和(自身を除く): 22304600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 2129, 3880, 4258, 7760, 8516, 10645, 17032, 21290, 34064, 42580, 85160, 170320, 206513, 413026, 826052, 1032565, 1652104, 2065130, 3304208, 4130260, 8260520, 16521040]

約数ペア:

[(1, 16521040), (2, 8260520), (4, 4130260), (5, 3304208), (8, 2065130), (10, 1652104), (16, 1032565), (20, 826052), (40, 413026), (80, 206513), (97, 170320), (194, 85160), (388, 42580), (485, 34064), (776, 21290), (970, 17032), (1552, 10645), (1940, 8516), (2129, 7760), (3880, 4258)]