28977325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{547}}^1$

素因数の和:733

約数の個数: 24

約数和(自身を含む): 39004448

約数和(自身を除く): 10027123

約数列:

[1, 5, 13, 25, 65, 163, 325, 547, 815, 2119, 2735, 4075, 7111, 10595, 13675, 35555, 52975, 89161, 177775, 445805, 1159093, 2229025, 5795465, 28977325]

約数ペア:

[(1, 28977325), (5, 5795465), (13, 2229025), (25, 1159093), (65, 445805), (163, 177775), (325, 89161), (547, 52975), (815, 35555), (2119, 13675), (2735, 10595), (4075, 7111)]