28579275

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1789}}^1$

素因数の和:1876

約数の個数: 36

約数和(自身を含む): 51938640

約数和(自身を除く): 23359365

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 639, 1065, 1775, 1789, 3195, 5325, 5367, 8945, 15975, 16101, 26835, 44725, 80505, 127019, 134175, 381057, 402525, 635095, 1143171, 1905285, 3175475, 5715855, 9526425, 28579275]

約数ペア:

[(1, 28579275), (3, 9526425), (5, 5715855), (9, 3175475), (15, 1905285), (25, 1143171), (45, 635095), (71, 402525), (75, 381057), (213, 134175), (225, 127019), (355, 80505), (639, 44725), (1065, 26835), (1775, 16101), (1789, 15975), (3195, 8945), (5325, 5367)]