398966975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{16301}}^1$

素因数の和:16411

約数の個数: 24

約数和(自身を含む): 545790960

約数和(自身を除く): 146823985

約数列:

[1, 5, 11, 25, 55, 89, 275, 445, 979, 2225, 4895, 16301, 24475, 81505, 179311, 407525, 896555, 1450789, 4482775, 7253945, 15958679, 36269725, 79793395, 398966975]

約数ペア:

[(1, 398966975), (5, 79793395), (11, 36269725), (25, 15958679), (55, 7253945), (89, 4482775), (275, 1450789), (445, 896555), (979, 407525), (2225, 179311), (4895, 81505), (16301, 24475)]