28703775

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20143}}^1$

素因数の和:20175

約数の個数: 24

約数和(自身を含む): 49957120

約数和(自身を除く): 21253345

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 20143, 60429, 100715, 302145, 382717, 503575, 1148151, 1510725, 1913585, 5740755, 9567925, 28703775]

約数ペア:

[(1, 28703775), (3, 9567925), (5, 5740755), (15, 1913585), (19, 1510725), (25, 1148151), (57, 503575), (75, 382717), (95, 302145), (285, 100715), (475, 60429), (1425, 20143)]