25996100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19997}}^1$

素因数の和:20024

約数の個数: 36

約数和(自身を含む): 60753924

約数和(自身を除く): 34757824

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 19997, 39994, 79988, 99985, 199970, 259961, 399940, 499925, 519922, 999850, 1039844, 1299805, 1999700, 2599610, 5199220, 6499025, 12998050, 25996100]

約数ペア:

[(1, 25996100), (2, 12998050), (4, 6499025), (5, 5199220), (10, 2599610), (13, 1999700), (20, 1299805), (25, 1039844), (26, 999850), (50, 519922), (52, 499925), (65, 399940), (100, 259961), (130, 199970), (260, 99985), (325, 79988), (650, 39994), (1300, 19997)]