131451255

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24967}}^1$

素因数の和:24997

約数の個数: 40

約数和(自身を含む): 253774752

約数和(自身を除く): 122323497

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 5265, 24967, 74901, 124835, 224703, 324571, 374505, 674109, 973713, 1123515, 1622855, 2022327, 2921139, 3370545, 4868565, 8763417, 10111635, 14605695, 26290251, 43817085, 131451255]

約数ペア:

[(1, 131451255), (3, 43817085), (5, 26290251), (9, 14605695), (13, 10111635), (15, 8763417), (27, 4868565), (39, 3370545), (45, 2921139), (65, 2022327), (81, 1622855), (117, 1123515), (135, 973713), (195, 674109), (351, 374505), (405, 324571), (585, 224703), (1053, 124835), (1755, 74901), (5265, 24967)]