287971996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{13217}}^1$

素因数の和:13653

約数の個数: 24

約数和(自身を含む): 544052880

約数和(自身を除く): 256080884

約数列:

[1, 2, 4, 13, 26, 52, 419, 838, 1676, 5447, 10894, 13217, 21788, 26434, 52868, 171821, 343642, 687284, 5537923, 11075846, 22151692, 71992999, 143985998, 287971996]

約数ペア:

[(1, 287971996), (2, 143985998), (4, 71992999), (13, 22151692), (26, 11075846), (52, 5537923), (419, 687284), (838, 343642), (1676, 171821), (5447, 52868), (10894, 26434), (13217, 21788)]